Sprinkler Library

[Binafus]

I wanted to add some items to the Sprinkler Library.

When I add items they do not show up on the materials list.

Any help would be appreciated.

Also has anyone already added items like Valves, Controllers, Covers etc and if so can they be downloaded to my PC.

If there is a way for me to upload the items where others can use them would be nice as well.