[ydl-gen] Graphical package installation app?

[Yellow Dog User]

Hi All--

I just installed Yellowdog 4.1 a week or so ago; I'm newly 
back to Linux after having been in Windows-world for about 
ten years.  Sorry if this question is answered somewhere 
obvious, but I haven't been able to find the answer, in 
the archives, on TerraSoft's web site, etc...

Is there some convenient graphical application in 
YellowDog 4.1 for finding and adding software packages?  I 
find the command line yum on here, but I'm wondering if 
there's a good graphical easy-to-use "modern" way of doing 
package management on here, that I haven't figured out how 
to look for.

Thanks much--

--Dave