Can I store a list of method callback pointers?

See my post just above your message - you posted at the same time as me so maybe you didn't see it.

You can store function pointers wherever you like, in an array, a list, a type field, a local, a global, whatever.

I am not so sure on the array question. Did you compile with debug on, because I'd think you'd get an array bounds error.

Not sure about resizing multidimensional - look at `slices` in the documentation.