diff --git a/novelwriter/assets/icons/typicons_dark/icons.conf b/novelwriter/assets/icons/typicons_dark/icons.conf
index 8a956979..46da8b3e 100644
--- a/novelwriter/assets/icons/typicons_dark/icons.conf
+++ b/novelwriter/assets/icons/typicons_dark/icons.conf
@@ -50,6 +50,7 @@ proj_details    = typ_th-list-grey.svg
 proj_document   = typ_document-text.svg
 proj_folder     = typ_folder.svg
 proj_note       = mixed_document-note.svg
+proj_section    = mixed_document-section.svg
 proj_scene      = mixed_document-scene.svg
 proj_stats      = typ_chart-bar-grey.svg
 proj_title      = mixed_document-title.svg
diff --git a/novelwriter/assets/icons/typicons_dark/mixed_document-section.svg b/novelwriter/assets/icons/typicons_dark/mixed_document-section.svg
new file mode 100644
index 00000000..69542bd9
--- /dev/null
+++ b/novelwriter/assets/icons/typicons_dark/mixed_document-section.svg
@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   version="1.2"
+   width="24"
+   height="24"
+   viewBox="0 0 24 24"
+   id="svg2161">
+  <metadata
+     id="metadata2167">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <defs
+     id="defs2165" />
+  <path
+     id="rect12986"
+     style="display:inline;opacity:0.95;fill:#ffffff;fill-opacity:1;stroke:none;stroke-width:1.88635;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
+     d="M 5.8886719 3.4453125 C 5.2152275 3.4453125 4.6660156 3.9925712 4.6660156 4.6660156 L 4.6660156 19.333984 C 4.6660156 20.007428 5.2152275 20.554687 5.8886719 20.554688 L 18.111328 20.554688 C 18.784774 20.554688 19.333984 20.007428 19.333984 19.333984 L 19.333984 4.6660156 C 19.333984 3.9925712 18.784774 3.4453125 18.111328 3.4453125 L 5.8886719 3.4453125 z " />
+  <path
+     id="rect935"
+     style="fill:#999999;fill-opacity:1;stroke-width:0;stroke-linecap:round;stroke-linejoin:round;stroke-opacity:0.2"
+     d="M 5.8886719 3.4453125 C 5.2152275 3.4453125 4.6660156 3.9925712 4.6660156 4.6660156 L 4.6660156 6 L 4.6660156 7.1894531 L 4.6660156 10.058594 L 19.333984 10.058594 L 19.333984 7.1894531 L 19.333984 6 L 19.333984 4.6660156 C 19.333984 3.9925712 18.784774 3.4453125 18.111328 3.4453125 L 5.8886719 3.4453125 z " />
+  <path
+     id="path2157"
+     style="display:inline;fill:#595959;fill-opacity:1;stroke-width:1.22222"
+     d="M 7.1113281,13.222656 C 6.7739949,13.222656 6.5,13.49665 6.5,13.833984 c 0,0.337332 0.2739949,0.611328 0.6113281,0.611328 h 9.7773439 c 0.337334,1e-6 0.611328,-0.273996 0.611328,-0.611328 0,-0.337334 -0.273994,-0.611328 -0.611328,-0.611328 z m 0,3.666016 C 6.7739949,16.888672 6.5,17.162666 6.5,17.5 c 0,0.337334 0.2739949,0.611328 0.6113281,0.611328 H 16.888672 C 17.226006,18.111328 17.5,17.837334 17.5,17.5 c 0,-0.337334 -0.273994,-0.611328 -0.611328,-0.611328 z" />
+  <path
+     id="path902"
+     style="display:inline;fill:#848484;fill-opacity:1;stroke-width:1.22222"
+     d="M 5.8886719,1 C 3.8671165,1 2.2226562,2.6444602 2.2226562,4.6660156 V 19.333984 C 2.2226563,21.355538 3.8671165,23 5.8886719,23 H 18.111328 c 2.021556,0 3.666016,-1.644462 3.666016,-3.666016 V 4.6660156 C 21.777344,2.6444602 20.132884,1 18.111328,1 Z m 0,2.4453125 H 18.111328 c 0.673446,0 1.222656,0.5472587 1.222656,1.2207031 V 19.333984 c 0,0.673444 -0.54921,1.220704 -1.222656,1.220704 H 5.8886719 c -0.6734444,-10e-7 -1.2226563,-0.54726 -1.2226563,-1.220704 V 4.6660156 c 0,-0.6734444 0.5492119,-1.2207031 1.2226563,-1.2207031 z" />
+  <path
+     id="path2157-0"
+     style="display:inline;fill:#ffffff;fill-opacity:1;stroke-width:1.22222"
+     d="M 7.1113281 5.8886719 C 6.7739949 5.8886719 6.5 6.1626667 6.5 6.5 C 6.5 6.837334 6.7739949 7.1113281 7.1113281 7.1113281 L 16.888672 7.1113281 C 17.226006 7.1113281 17.5 6.837334 17.5 6.5 C 17.5 6.1626667 17.226006 5.8886719 16.888672 5.8886719 L 7.1113281 5.8886719 z " />
+</svg>
diff --git a/novelwriter/assets/icons/typicons_light/icons.conf b/novelwriter/assets/icons/typicons_light/icons.conf
index f83315d2..7649328c 100644
--- a/novelwriter/assets/icons/typicons_light/icons.conf
+++ b/novelwriter/assets/icons/typicons_light/icons.conf
@@ -50,6 +50,7 @@ proj_details    = typ_th-list-grey.svg
 proj_document   = typ_document-text.svg
 proj_folder     = typ_folder.svg
 proj_note       = mixed_document-note.svg
+proj_section    = mixed_document-section.svg
 proj_scene      = mixed_document-scene.svg
 proj_stats      = typ_chart-bar-grey.svg
 proj_title      = mixed_document-title.svg
diff --git a/novelwriter/assets/icons/typicons_light/mixed_document-section.svg b/novelwriter/assets/icons/typicons_light/mixed_document-section.svg
new file mode 100644
index 00000000..28dc015a
--- /dev/null
+++ b/novelwriter/assets/icons/typicons_light/mixed_document-section.svg
@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   version="1.2"
+   width="24"
+   height="24"
+   viewBox="0 0 24 24"
+   id="svg2161">
+  <metadata
+     id="metadata2167">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <defs
+     id="defs2165" />
+  <path
+     id="rect12986"
+     style="display:inline;opacity:0.95;fill:#ededed;fill-opacity:1;stroke:none;stroke-width:1.88635;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
+     d="M 5.8886719 3.4453125 C 5.2152275 3.4453125 4.6660156 3.9925712 4.6660156 4.6660156 L 4.6660156 19.333984 C 4.6660156 20.007428 5.2152275 20.554687 5.8886719 20.554688 L 18.111328 20.554688 C 18.784774 20.554688 19.333984 20.007428 19.333984 19.333984 L 19.333984 4.6660156 C 19.333984 3.9925712 18.784774 3.4453125 18.111328 3.4453125 L 5.8886719 3.4453125 z " />
+  <path
+     id="rect935"
+     style="fill:#787878;fill-opacity:1;stroke-width:0;stroke-linecap:round;stroke-linejoin:round;stroke-opacity:0.2"
+     d="M 5.8886719 3.4453125 C 5.2152275 3.4453125 4.6660156 3.9925712 4.6660156 4.6660156 L 4.6660156 6 L 4.6660156 7.1894531 L 4.6660156 10.058594 L 19.333984 10.058594 L 19.333984 7.1894531 L 19.333984 6 L 19.333984 4.6660156 C 19.333984 3.9925712 18.784774 3.4453125 18.111328 3.4453125 L 5.8886719 3.4453125 z " />
+  <path
+     id="path2157"
+     style="display:inline;fill:#333333;fill-opacity:1;stroke-width:1.22222"
+     d="M 7.1113281,13.222656 C 6.7739949,13.222656 6.5,13.49665 6.5,13.833984 c 0,0.337332 0.2739949,0.611328 0.6113281,0.611328 h 9.7773439 c 0.337334,1e-6 0.611328,-0.273996 0.611328,-0.611328 0,-0.337334 -0.273994,-0.611328 -0.611328,-0.611328 z m 0,3.666016 C 6.7739949,16.888672 6.5,17.162666 6.5,17.5 c 0,0.337334 0.2739949,0.611328 0.6113281,0.611328 H 16.888672 C 17.226006,18.111328 17.5,17.837334 17.5,17.5 c 0,-0.337334 -0.273994,-0.611328 -0.611328,-0.611328 z" />
+  <path
+     id="path902"
+     style="display:inline;fill:#333333;fill-opacity:1;stroke-width:1.22222"
+     d="M 5.8886719,1 C 3.8671165,1 2.2226562,2.6444602 2.2226562,4.6660156 V 19.333984 C 2.2226563,21.355538 3.8671165,23 5.8886719,23 H 18.111328 c 2.021556,0 3.666016,-1.644462 3.666016,-3.666016 V 4.6660156 C 21.777344,2.6444602 20.132884,1 18.111328,1 Z m 0,2.4453125 H 18.111328 c 0.673446,0 1.222656,0.5472587 1.222656,1.2207031 V 19.333984 c 0,0.673444 -0.54921,1.220704 -1.222656,1.220704 H 5.8886719 c -0.6734444,-10e-7 -1.2226563,-0.54726 -1.2226563,-1.220704 V 4.6660156 c 0,-0.6734444 0.5492119,-1.2207031 1.2226563,-1.2207031 z" />
+  <path
+     id="path2157-0"
+     style="display:inline;fill:#ededed;fill-opacity:1;stroke-width:1.22222"
+     d="M 7.1113281 5.8886719 C 6.7739949 5.8886719 6.5 6.1626667 6.5 6.5 C 6.5 6.837334 6.7739949 7.1113281 7.1113281 7.1113281 L 16.888672 7.1113281 C 17.226006 7.1113281 17.5 6.837334 17.5 6.5 C 17.5 6.1626667 17.226006 5.8886719 16.888672 5.8886719 L 7.1113281 5.8886719 z " />
+</svg>
diff --git a/novelwriter/constants.py b/novelwriter/constants.py
index 3d1b5c13..2cd5b15c 100644
--- a/novelwriter/constants.py
+++ b/novelwriter/constants.py
@@ -157,6 +157,7 @@ class nwLabels:
         "doc_h1":   QT_TRANSLATE_NOOP("Constant", "Novel Title Page"),
         "doc_h2":   QT_TRANSLATE_NOOP("Constant", "Novel Chapter"),
         "doc_h3":   QT_TRANSLATE_NOOP("Constant", "Novel Scene"),
+        "doc_h4":   QT_TRANSLATE_NOOP("Constant", "Novel Section"),
         "note":     QT_TRANSLATE_NOOP("Constant", "Project Note"),
     }
     KEY_NAME = {
diff --git a/novelwriter/core/item.py b/novelwriter/core/item.py
index a8faea8b..9901f39e 100644
--- a/novelwriter/core/item.py
+++ b/novelwriter/core/item.py
@@ -285,6 +285,8 @@ class NWItem:
                     descKey = "doc_h2"
                 elif hLevel == "H3":
                     descKey = "doc_h3"
+                elif hLevel == "H4":
+                    descKey = "doc_h4"
                 else:
                     descKey = "document"
             elif self._layout == nwItemLayout.NOTE:
diff --git a/novelwriter/gui/theme.py b/novelwriter/gui/theme.py
index 8324270b..f2d0b066 100644
--- a/novelwriter/gui/theme.py
+++ b/novelwriter/gui/theme.py
@@ -459,10 +459,11 @@ class GuiIcons:
         "novelwriter", "cls_archive", "cls_character", "cls_custom", "cls_entity", "cls_none",
         "cls_novel", "cls_object", "cls_plot", "cls_timeline", "cls_trash", "cls_world", "doc_h0",
         "doc_h1", "doc_h2", "doc_h3", "doc_h4", "proj_chapter", "proj_details", "proj_document",
-        "proj_folder", "proj_note", "proj_nwx", "proj_scene", "proj_stats", "proj_title",
-        "search_cancel", "search_case", "search_loop", "search_preserve", "search_project",
-        "search_regex", "search_word", "status_idle", "status_lang", "status_lines",
-        "status_stats", "status_time", "view_build", "view_editor", "view_novel", "view_outline",
+        "proj_folder", "proj_note", "proj_nwx", "proj_section", "proj_scene", "proj_stats",
+        "proj_title", "search_cancel", "search_case", "search_loop", "search_preserve",
+        "search_project", "search_regex", "search_word", "status_idle", "status_lang",
+        "status_lines", "status_stats", "status_time", "view_build", "view_editor", "view_novel",
+        "view_outline",
 
         # General Button Icons
         "add", "backward", "check", "close", "cross", "down", "edit", "forward", "maximise",
@@ -641,6 +642,8 @@ class GuiIcons:
                     iconName = "proj_chapter"
                 elif hLevel == "H3":
                     iconName = "proj_scene"
+                elif hLevel == "H4":
+                    iconName = "proj_section"
             elif tLayout == nwItemLayout.NOTE:
                 iconName = "proj_note"
         if iconName is None:
diff --git a/tests/test_core/test_core_item.py b/tests/test_core/test_core_item.py
index e2fa75e0..3f4fe7ca 100644
--- a/tests/test_core/test_core_item.py
+++ b/tests/test_core/test_core_item.py
@@ -218,7 +218,8 @@ def testCoreItem_Methods(mockGUI):
     assert theItem.describeMe("H1") == "Novel Title Page"
     assert theItem.describeMe("H2") == "Novel Chapter"
     assert theItem.describeMe("H3") == "Novel Scene"
-    assert theItem.describeMe("H4") == "Novel Document"
+    assert theItem.describeMe("H4") == "Novel Section"
+    assert theItem.describeMe("H5") == "Novel Document"
 
     theItem.setLayout("NOTE")
     assert theItem.isNoteLayout() is True