If you have a solid 4 man, but all of your candidates for a 5th starter are kind of skimpy on STA this would be the perfect use of a tandem role.

Unfortunately it only allows you to go 4 A&B which makes the rest of your staff a 4 man.

I'd make them 1a and 1b then set the rest 2-5, but it won't allow that either, since the tandem role has to be at the end of the rotation.

Seems like that wouldn't be a hard thing to add, and can't think of a reason why the limit should be 4.

Basically means there are two different ways this could be fixed. Remove the restriction that it has to be at the end OR add the Tandem 5 spot.

Or, YOU could make your tandems SP 5 & 6, check in at least once every 3 or 4 days, put a SP 1 thru 4 in rest, change SP 5 & 6 to SP 4A & B. Then change everything back after your tandems have pitched to start again. It is only a bit exhausting, there are no union restrictions and the time pressures are minimal if you stay reasonably sober and there are no hurricanes, major insurrections or medical emergencies.

Yes, by all means, force the paying customer do a bunch more work to play your game, instead of implementing a reasonable fix.