How to show a list of who is home in one text label

I’m using a Netatmo Welcome, and I’ve set up an item for each person in the home. Each item shows whether that person is home or away:

Switch Welcome_Malakai_AtHome “Malakai [%s]” {netatmo=“camera=CAMID#PERSONID#OutOfSight”}

I’d like to show a single item line listing all names of people who are home.

i.e. not an item for each person showing whether they are home or away, as that’s too much space and not necessary

Any ideas?

Think you will need a virtual String item which you populate via a rule, and display this in the sitemap.

Yep, something should be possible with a rule. See here: https://github.com/openhab/openhab/wiki/Rule-example%3A-Combining-different-items