Change the input of an attribute to match its type

**Is your feature request related to a problem? Please describe.**
Not really a concern, but there are enum attributes, which can only have a set of specific set of values.

**Describe the solution you'd like**
Check the type of the attribute and change the input type to its corresponding type.

- [ ] Select (enum)
- [ ] Number (int)
- [ ] Toggle (boolean)

The possible values should be gathered from the FrankDoc in case of an enum.