I have a use case that requires many identically structured pages with a fixed multi column/row layout. For the moment, I'm resorting to a custom page template, which works fine as such. However, one aspect of that predefined layout is that several text areas have a hard maximum character limit.
Is there a macro (or any other approach) to limit or at least show the number of allowed characters in a text area so that the page template users are guided regarding the character limit while editing the page?