You can use the helper (see https://sequematic.com/helpers) to automatically create sequences to trigger things when someone comes/leaves home.The helper is set up based on counting the people at home.

I have setup checking people at home differently. It costs a little more work, but you'll be more in control. Here is my setup:

Variables (add extra person variables if you have more friends):

• person1_at_home --> TRUE or FALSE
• person2_at_home --> TRUE or FALSE
• ppl_at_home --> TRUE or FALSE

Tip: change the true or false state with a variable webhook! See https://sequematic.com/help/variables for more info. I use Tasker on Android to trigger a variable webhook (see https://sequematic.com/help/qa/173/using-webhooks-without-phone-data)

Create a Sequence for Person1 (do the same for the other persons):

• Triggered when person1 _at_home changes
• If person1_at_home is equal to TRUE, then...
  • Set ppl_at_home to TRUE
• Else
  • If person1_at_home is equal to FALSE, then...
    • If person2_at_home is equal to FALSE, then...
      • Set ppl_at_home to FALSE
    • End of condition
  • End of condition
• End of condition

If you have more persons to check, then create more nested IF statements as grouped IF's aren't available yet (see my feature request; an AND statement would be helpful here.... ).

Next create a Sequence when people are at home:

• Triggered when ppl_at_home equals TRUE

• Run the sequence WHAT EVER YOU WANT

Last create a Sequence when people are NOT at home:

• Triggered when ppl_at_home equals FALSE
• Run the sequence WHAT EVER YOU WANT

Btw, I like my sequences short and simple. That way you can use and trigger them in other sequences.

Happy programming!