Fill with Symbols allows you to fill areas with an assortment of related symbols, creating forests and similar terrain. It is much more convenient to add drawing tools which can do this.
To make use of this topic, you need to understand custom drawing tools and Fill with Symbols
Take a look at the CC3 Overland symbol setting Terrain, Decid Forest as an example.
[Optional] Create a Fill with Symbols setting, and save it in your CC3 system \fillers folder as yourfil.fil.
Click Drawing Tools, click Advanced and select the style to which you wish to add your drawing tool.
Create the drawing tool for the entitiy or entities which goes underneath the areas filled with symbols.
Click Use Macro Command and Apply Macro after drawing.
Click Command to Execute, and add the following macro*:
SELSAVE
SELBYP
FORESTLOAD #system\fillers\yourfil.fil
FOREST
MOVESHT symbols
SELREST
Click OK. Save the drawing tool with a suitable name.
Save a drawing to appear as a thumbnail for this drawing tool in the appropriate folder in CC3's System\Drawtools folder. Give it the same name as the draw tool.
* The macro saves the current selection method, and changes the selection method to Select By Prior. It sets the current fill with symbols setting to yourfil.fil then starts the Fill with Symbols command. Then it moves the symbols it added to the SYMBOLS sheet, and restores the selection method.