How to create a symbol with pattern - Place polygon -
1. Open "Tool" menu and select "Polygon".
2. Click at the vertices of polygon.
At the last vertex, double-click to complete placing polygon.
After double-clicking at the last vertex.
Being displayed in red means that it is in a selection state.
In selection state, you can do the following operations.
Selection state is ended by pressing ESC key or Clicking at work area when cursor doesn't have "MOVE" mark.
In current version of LCoV, you can't add or delete a vertex.