Pb with Ressources i try to import

Dear communauty. I have to put an adaptator on my Mill-Turn machine but when i clik on the "import resources icone", i don't see anymore all the icone. I only see those that allow you to import a machine (picture joined). So i can't see for example the one you can see on the other picture : is it an option i have inadvertently deactivated ?
Thank's a lot !