Adding additional fields for guiding in Read only forms

Need help to add guiding field as in small description Note fields under pre-existing forms in Redwood. Currently trying to add it in the Personal Details Page.

Classic:

Redwood:

Tried following steps after researching on other Custom connects questions (Used Personal Legislative Info Form as Names component didn't seem to have dynamic form):

Selected Dynamic Form - personLegislativeInfoAll_readOnlyForm

Created new Rule and added custom layout

Added new custom field(read Only) with hardcoded value

But after trying to edit layout to include the field - page getting stuck like this:

Version: 24D