Figma Buzz Library left panel

Hello, 

We're starting to use Figma Buzz in my company. For me, being connected to a library of assets will allow the marketing team to respect our graphic charter and easily produce interesting content for social networks. 

But in fact, I can't delete other libraries from Figma Buzz in the left panel. Which is annoying, because the marketing team could use them (because it’s here...) , but we don't want to. 

Is there a way to remove them from the left panel here (attached picture) ? 

Have a nice day, 
Adrien