Candidate skills block - how do I edit this

Summary

Is it possible to create a candidate skills value list

Content

I note in 20B it looks like there has been some enhancement as to how the ‘skills’ building block can be used during a candidate application.

 

However I’m really struggling to find relevant information on the application flow building blocks in general. I’d like to establish how they’re configured and if we can use pre-loaded values. i.e. my preference would be to have a bank of skills  a candidate can select from, as oppose to free text - as you can imagine this won’t make for a very useful searching tool (spelling errors; multiple different skills – no consistency).