To prevent the changes made in the addon file(s) from being overwritten when updating the component, we suggest using the following method. 

1. Create those folders inside your template folder:  templates\shaper_NAME\sppagebuilder\addons\
"shaper_NAME"  is just an example, you have to use your real template folder name. It can be: shaper_helixultimate,  shaper_doctor or shaper_helix3 etc.

2. Then inside newly created folders copy the addon folder, for example:
   

   templates\shaper_NAME\sppagebuilder\addons\button_group

   inside must be site.php or/and admin.php file that you want to customize (add changes).

3. Then Joomla will use those files first before using the addon from a component folder. It means that you can update the SP Page Builder and your customization will be used.