I'm wondering if you can make a second craft, profession, or perform skill a class skill upon multiclassing, so that, for example, you could have both Craft (Alchemy) and Craft (Weapons) as class skills as a result.
[RPG] Can you choose a second craft/profession/perform subskill as a class skill when multiclassing
multi-classingpathfinder-1eskills
Best Answer
Yes, but no need to do that; read below.
Reference in the PFSRD:
Skills
See the wording under the Craft skill for a little more guidance: