editor help doc sort with space for Methods and Properties by alphabetical order

Author: ChristopheLY

editor/editor_help.cpp

@@ -517,7 +517,26 @@ void EditorHelp::_update_doc() {
 		class_desc->push_table(2);
 		class_desc->set_table_column_expand(1, true);
 
+		String first_char;
 		for (int i = 0; i < cd.properties.size(); i++) {
+			const String new_char = cd.properties[i].name.substr(0, 1);
+			bool is_new_group = false;
+
+			if (i < cd.properties.size() - 1 && new_char == cd.properties[i + 1].name.substr(0, 1) && new_char != first_char) {
+				is_new_group = i > 0;
+				first_char = new_char;
+			} else if (first_char != "" && new_char != first_char) {
+				is_new_group = true;
+				first_char = "";
+			}
+
+			if (is_new_group) {
+				class_desc->push_cell();
+				class_desc->pop(); //cell
+				class_desc->push_cell();
+				class_desc->pop(); //cell
+			}
+
 			property_line[cd.properties[i].name] = class_desc->get_line_count() - 2; //gets overridden if description
 
 			class_desc->push_cell();
@@ -640,10 +659,10 @@ void EditorHelp::_update_doc() {
 
 			String group_prefix;
 			for (int i = 0; i < m.size(); i++) {
-				const String new_prefix = m[i].name.substr(0, 3);
+				const String new_prefix = m[i].name.substr(0, 1);
 				bool is_new_group = false;
 
-				if (i < m.size() - 1 && new_prefix == m[i + 1].name.substr(0, 3) && new_prefix != group_prefix) {
+				if (i < m.size() - 1 && new_prefix == m[i + 1].name.substr(0, 1) && new_prefix != group_prefix) {
 					is_new_group = i > 0;
 					group_prefix = new_prefix;
 				} else if (group_prefix != "" && new_prefix != group_prefix) {