Our Summoner regularly casts Evolution Surge on his Eidolon, but there's no Temporary Bonus Spell to add the temp. evolutions and refigure the sheet.
Pathfinder Core Rulebooks
I tried applying Temp. Bonus Evolution Surge, either to the Eidolon, or the Summoner (not clear which, since it didn't show).
Did not increase the number of Evolutions.
Did not offer a chooser (better!) to pick the evolutions when the spell is applied.
Evolutions go on the Eidolon. You should be on the Eidolon to apply. I'll take a look and see what is wrong.
Tested and working. As a bonus I enabled the UM evolutions as well.
Apply the Temp Bonus to the Eidolon
Switch to Racial Abilities
See NEW "Temp Eidolon Evolution" pool.
Items that can be taken multiple times will not work. Come up with a list, and I'll disable the prexxx check to allow it.
Quirky... I had to save the Eidolon and re-open to see the Temp Eidolon Evolution selector.
Is there some trick to make it appear without a save and re-load?
Hmm... it appears that "Temp Eidolon Evolution" appears if I add the Temp Bonus for spell "Evolution Surge", but not "Evolution Surge (Greater)" or "Evolution Surge (Lesser)".
If I add the middle one, I can also add the other 2 and work with the selector. I can use the Tick boxes to make one active & not the others.
Unticking Greater & std, leaves Lesser ticked, and a selector.
Unticking (Lesser) removes the selector; but re-ticking it does not restore it.
Looks as though there is something odd about (Lesser).
Also having had (Lesser) active and 2 pts in selector pool, I went to Temporary Bonuses & removed all 3 - and the selector is still there, still showing 2pts available.
I'm muddled over the exact combinations.,, time for bed (23:37 here).