Is it possible to add a hole to a hole table that is not a clean hole.  As you can see from my post I have a slot that the hole resides in, so when picking the hole it does nto let me select it for the hole table.  Is there a work around or something I need to do to be able to add these holes to the hole table?

On the drawing above the 4 hole circled in red are 0.250 diameter and should be labeled as C5-C8, but it won't let me select them as a hole.