Holes for cribbage board

I've been trying to figure out how to lay holes to a path for a cribbage board, like posted in this thread https://community.coreldraw.com/talk/coreldraw_graphics_suite_x6/f/coreldraw-x6/47069/cribbage-board-holes

but the blend part doesn't seem to work for me. Is it because it's different in x4 than x6? Could anyone help me with x4?