If you want to copy and paste some chars from the set...
- open a project that has chars you want to copy/paste.
- click the starting character in the Char Set form, then hold SHIFT and click the ending character to select the range.
- hit CTRL+C, or go to the menu and choose Chars->Copy.
- open up the project you want to paste into, select the starting pos/char in the set and hit CTRL+V or go to the menu and find Chars->Paste for a few different paste options (insert, overwrite, append).