Boolean and enum attributes are supported. Else you could use my ‘editable by condition’ widget from the AppStore:
With this widget you could use other attributes as well as microflow logic to decide whether to make a container (non)editable.
Yep, this is available in the properties of the textbox. Look here to see how!
I think this is as simple as using the conditional editability on the input widget.
Right-click → Edit condition for editable → either “based on attribute” or “based on expression” depending on your need
If your first input is an enumeration dropdown, using the “based on attribute” option should get you what you need.
I was searching for something other than a Boolean field