It seems to me that for some reason this didn't make its way to the official documentation
and seems to be rather unknown though implemented already in IRIS 2020.1

Thanks to @Dan Pasco I got a hint on the classes involved.
I used the recommended sequence of how to use it.
it is all directly taken from Class Reference and I just collected it to create a first overview.

Triggered by a question placed by @Kurro Lopez recently
I took a closer look at the indexing of collections.
My simple test setup is a serial class and a persistent class with a list of this serial.

Globals in Caché / Ensemble / IRIS are normally invisible over SQL access
This example shows how to overcome this limit.

The offer of ZPM is growing daily and the short names and
acronyms of the offer are sometimes hard to understand and
also hard to type with my lazy fingers.

So I decided to have

• a listing with the descriptions from the repository,
• split in short junks to avoid backscroll,
• controlled forward / backward scrolling,
• the option to select my packages by number,
• to install or uninstall with limited typing.

It runs with do ^zpmshow

A snapshot from the screen: