Does this mean that all the component templates must be placed in only that form, ie does the form have to be named _Templates_Form and the file named _templates.pas, or can you have different _templates1.pas, _templates2.pas etc, with the proviso that the form is named _Templates_Form?
Which versions of Lazarus have this feature?
I mean that you can achieve the results that provide component templates without component templates, using the existing features of IDE, but a little less convenient.
You can simply copy any component from any form to another form with current (changed) properties. This works in all versions of Delphi and Lazarus.
But in working form usually assigned event handlers and etc which you dont need.
Therefore, I propose to use a separate form for pre-configured components. This form (or forms) will only serve as a container for pre-configured components, something like analog of palette. Name of the form and the number of forms may be arbitrary. After finishing of developing you may exclude that form from project.