Lockable or fill-able form like folder Templates

When using a template in a subdocument or folder you can accidentally change the template. Can Scrivener be updated to make the subdocument Template more like a fill-able form?

We make our template, then once using it as a subdocument, the headings made in the Template can not be changed while adding information to the subdocument.

I saw this was asked for years ago, but it is still very much needed for efficiency of using templates.