This is something I hope most of us won't experiencehaving to drop a stage from a match once the match has started.

If you need to do so, that stage will no longer be part of the match's calculations - whether for total scores or for keeping track of how many stages have been shot.  Any shooters who've already shot the stage in question will have those scores zeroed out.

NOTE:  This will not affect BUG stages and registrations; you'll have to deal with those manually.

To drop a stage, go into the setup screen for the match and click Drop Stages.  The Dropped Stages tab will become visible.

 

Specify the stage to drop and click OK:

 

Cross your heart that you REALLY mean it.  (This screen will let you run the backup files wizard if you haven't already done so.)

 

The dropped stage will show as blue in Shooter entry mode:

 

The dropped stage will be disabled in Stage entry mode: