Can the Change Appearance option of alter self be used to give a four-armed creature hands on those other arms?
You transform your appearance...You can make yourself appear as a member of another race, though none of your statistics change... your basic shape stays the same
In particular I was considering the Simic Hybrid race from Ravnica which can have additional appendages, but not additional hands:
You have two special appendages growing alongside with your arms. Choose whether they're both claws or tentacles.
Can alter self change these appendages into functional arms with hands, say by emulating a girallon (a four-armed ape)?