Help Center For Vendors - Alternative Addon Wanted

Hi all, we are looking for an alternative for this addon because it is not compatible with the current version and the developer is not available.
Vendor Help Center (
Our goal: We want to show in the vendor backoffice different information, or buttons and links. E.g. Guideline, how do I create products,...
Does anyone know a similar module or does anyone have a tip on how else we can implement it?
Thanks in advance