How to make all styles children of one style?
 

Hi all, i have 3 different main styles with a couple of child styles each, is it possible to make all the styles and child styles the children of one main style?

I ask this because when adding template edits or changes it's a lot of work keeping up with all the changes to all the templates, yes, each of my child styles may have different colours ...etc but the edits i make are for all styles this is why i want to make life easier ! :)