diff --git a/lib/Makefile.am b/lib/Makefile.am
index 3816d5c727..0db9ad8cd9 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -569,6 +569,7 @@ dist_images_DATA1X = \
 	images/tabular-feature_set-longtabular.svgz \
 	images/tabular-feature_set-rotate-cell.svgz \
 	images/tabular-feature_set-border-lines.svgz \
+	images/tabular-feature_set-inner-lines.svgz \
 	images/tabular-feature_set-rotate-tabular.svgz \
 	images/tabular-feature_toggle-line-bottom.svgz \
 	images/tabular-feature_toggle-line-left.svgz \
@@ -1848,6 +1849,7 @@ dist_imagesoxygen_DATA1X = \
 	images/oxygen/tabular-feature_multirow.svgz \
 	images/oxygen/tabular-feature_set-all-lines.svgz \
 	images/oxygen/tabular-feature_set-border-lines.svgz \
+	images/oxygen/tabular-feature_set-inner-lines.svgz \
 	images/oxygen/tabular-feature_set-longtabular.svgz \
 	images/oxygen/tabular-feature_toggle-line-bottom.svgz \
 	images/oxygen/tabular-feature_toggle-line-left.svgz \
@@ -2045,6 +2047,7 @@ dist_imagesclassic_DATA = \
 	images/classic/tabular-feature_multirow.png  \
 	images/classic/tabular-feature_set-all-lines.png  \
 	images/classic/tabular-feature_set-border-lines.png  \
+	images/classic/tabular-feature_set-inner-lines.png  \
 	images/classic/tabular-feature_set-longtabular.png  \
 	images/classic/tabular-feature_set-rotate-cell.png  \
 	images/classic/tabular-feature_set-rotate-tabular.png  \
diff --git a/lib/images/classic/tabular-feature_set-inner-lines.png b/lib/images/classic/tabular-feature_set-inner-lines.png
new file mode 100644
index 0000000000..a8179e9559
Binary files /dev/null and b/lib/images/classic/tabular-feature_set-inner-lines.png differ
diff --git a/lib/images/classic/tabular-feature_unset-all-lines.png b/lib/images/classic/tabular-feature_unset-all-lines.png
index b78d50d172..27bdbdd7c0 100644
Binary files a/lib/images/classic/tabular-feature_unset-all-lines.png and b/lib/images/classic/tabular-feature_unset-all-lines.png differ
diff --git a/lib/images/oxygen/tabular-feature_set-inner-lines.svgz b/lib/images/oxygen/tabular-feature_set-inner-lines.svgz
new file mode 100644
index 0000000000..9ad978e1d7
Binary files /dev/null and b/lib/images/oxygen/tabular-feature_set-inner-lines.svgz differ
diff --git a/lib/images/tabular-feature_set-inner-lines.svgz b/lib/images/tabular-feature_set-inner-lines.svgz
new file mode 100644
index 0000000000..c9ea752710
Binary files /dev/null and b/lib/images/tabular-feature_set-inner-lines.svgz differ
diff --git a/lib/ui/stdtoolbars.inc b/lib/ui/stdtoolbars.inc
index 4b20445ca0..2f0ef6b289 100644
--- a/lib/ui/stdtoolbars.inc
+++ b/lib/ui/stdtoolbars.inc
@@ -159,6 +159,7 @@ ToolbarSet
 		Item "Set right line" "tabular-feature toggle-line-right"
 		Item "Set border lines" "tabular-feature set-border-lines"
 		Item "Set all lines" "tabular-feature set-all-lines"
+		Item "Set inner lines" "tabular-feature set-inner-lines"
 		Item "Unset all lines" "tabular-feature unset-all-lines"
 		Separator
 		Item "Align left" "command-alternatives tabular-feature m-align-left;tabular-feature align-left"
diff --git a/src/insets/InsetTabular.cpp b/src/insets/InsetTabular.cpp
index f1cf912de5..ed28241494 100644
--- a/src/insets/InsetTabular.cpp
+++ b/src/insets/InsetTabular.cpp
@@ -199,6 +199,7 @@ TabularFeature tabularFeature[] =
 	{ Tabular::LONGTABULAR_ALIGN_RIGHT, "longtabular-align-right", false },
 	{ Tabular::SET_DECIMAL_POINT, "set-decimal-point", true },
 	{ Tabular::SET_TABULAR_WIDTH, "set-tabular-width", true },
+	{ Tabular::SET_INNER_LINES, "set-inner-lines", false },
 	{ Tabular::LAST_ACTION, "", false }
 };
 
@@ -4969,6 +4970,7 @@ bool InsetTabular::getFeatureStatus(Cursor & cur, string const & s,
 
 		case Tabular::SET_ALL_LINES:
 		case Tabular::UNSET_ALL_LINES:
+		case Tabular::SET_INNER_LINES:
 		case Tabular::SET_BORDER_LINES:
 			status.setEnabled(!tabular.ltCaption(tabular.cellRow(cur.idx())));
 			break;
@@ -5779,6 +5781,7 @@ void InsetTabular::tabularFeatures(Cursor & cur,
 	row_type sel_row_start;
 	row_type sel_row_end;
 	bool setLines = false;
+	bool setLinesInnerOnly = false;
 	LyXAlignment setAlign = LYX_ALIGN_LEFT;
 	Tabular::VAlignment setVAlign = Tabular::LYX_VALIGN_TOP;
 
@@ -6131,6 +6134,9 @@ void InsetTabular::tabularFeatures(Cursor & cur,
 		break;
 	}
 
+	case Tabular::SET_INNER_LINES:
+		setLinesInnerOnly = true;
+		// fall through
 	case Tabular::SET_ALL_LINES:
 		setLines = true;
 		// fall through
@@ -6138,10 +6144,16 @@ void InsetTabular::tabularFeatures(Cursor & cur,
 		for (row_type r = sel_row_start; r <= sel_row_end; ++r)
 			for (col_type c = sel_col_start; c <= sel_col_end; ++c) {
 				idx_type const cell = tabular.cellIndex(r, c);
-				tabular.setTopLine(cell, setLines);
-				tabular.setBottomLine(cell, setLines);
-				tabular.setRightLine(cell, setLines);
-				tabular.setLeftLine(cell, setLines);
+				if (!setLinesInnerOnly || r != sel_row_start)
+					tabular.setTopLine(cell, setLines);
+				if ((!setLinesInnerOnly || r != sel_row_end)
+				    && (!setLines || r == sel_row_end))
+					tabular.setBottomLine(cell, setLines);
+				if ((!setLinesInnerOnly || c != sel_col_end)
+				    && (!setLines || c == sel_col_end))
+					tabular.setRightLine(cell, setLines);
+				if ((!setLinesInnerOnly || c != sel_col_start))
+					tabular.setLeftLine(cell, setLines);
 			}
 		break;
 
diff --git a/src/insets/InsetTabular.h b/src/insets/InsetTabular.h
index 87114ec367..92ccdb6bc2 100644
--- a/src/insets/InsetTabular.h
+++ b/src/insets/InsetTabular.h
@@ -306,6 +306,8 @@ public:
 		///
 		SET_TABULAR_WIDTH,
 		///
+		SET_INNER_LINES,
+		///
 		LAST_ACTION
 	};
 	///