Usage of Stencil Libraries in Excalidraw Plugin

What I’m trying to do

I’d like to add pictograms and other small drawings to Excalidraw to use them.

Things I have tried

I’ve find place at www, where I can download them, and also find the proper term - Stencil Library in Excalidraw tutorial video dated back to 2021-04-26. However my Excalidraw version places image icon instead of Library icon. And I’m missing any parameter on plugin card to enable Stencil Libraries

How can I enable usage of image Libraries in Excalidraw and start to utilise them?