I have several that came up where I don't want them.
Can I transplant them and if so when??

I move mine around all the time. I do it whenever is convenient for me. Most make it. Once in a while they don't. No matter, they reseed like crazy for me.

Same here. Once they get going you will never be without them. They also cross pollinate.

Mine all end up reverting to what I call Granny's bonnet, a very plain stubby violet bloom with tiny spurs. That must be what the hybrid seed churn out I suppose. I'm OK with it, but don't feel bad about yarding it out if it's not where I want/need it. I sure wish the pretty ones would re-seed true, but I've not found that.