Help with extra xscreensaver modules

Hello, I am new to Arch based distros and Manjaro. I am using xscreensaver and would like to know how to install the extra modules: xscreensaver-data-extra xscreensaver-gl-extra rss-glx xscreensaver-screensaver-webcollage. I have searched for the answer online and in the Manjero docs but cannot find the answer. I have also looked for the AUR repositories. Would someone be so kind as to enlighten a noob as to how to do this? Thank you!

If you have looked in the AUR and not found anything there:
where are these names from?
My guess is that these are the package names in a Debian or Ubuntu system.

They may have split packages while Arch has got all the things in one package …
it may be that you are looking for stuff tghat you already have - or find by looking for slightly different but similar names.