Custom Shells - some double entries

SYSTEM INFORMATION
OS type and version Ubuntu Linux 22.04.5
Usermin version 2.102
Virtualmin version 7.20.2 Pro
Theme version 21.20.7
Apache version 2.4.52
Package updates All installed packages are up to date

background

I am just looking at custom shells just for curiosity, I don’t intend to change any of them because I do not understand them and I am huessing they are setup correctly.

the question

I noticed a lot of the entries were doubled up and each row had slightly different options. Is this correct or has there been an issue somewhere.

Is this a reseller thing?

Thanks