are they fixed, if not, do it imm. can she play with them b4 she goes out. they may be running around chasing things outside, from window to window, I don't know if caging a cat works like it will with a dog. if it calms them down, then it's o.k.
do they have enough climbing toys to climb on and get ht. they may need a bird feeder outsie their favorite window. My Zoey has a lot of climbing things, we have wide windowsills for her, and a bird feeder that feeds squirrels and birds to keep her busy when i'm gone. the poor babies miss her