• Yes, you can use a single login for all the clubs where you are registered.

Beforehand, you must have:

• The username and password of your main account
• The username and password of the 2nd account you want to merge

Then, log in with your credentials to your main account via your club's URL and click My profile in the left-hand menu

On this page, you will find the “Merge with existing Plugin.ch account” section

Enter the username and password of your 2nd account and click Merge.

From now on, you will use the same credentials to log in to these 2 clubs. You can repeat this operation for as many clubs as you have access to