First steps with flows


I have a few questions …

Is there an app on Homey to simulate presence at home … like turning on the lights at a random time between 5pm and 6pm ?

On the app, is it possible to add a button on the devices page to trigger a flow?

Is it possible to create a flow without trigger (only the THEN)…and then others flows that triggers the first flow? I know I can add multiple triggers on a same flow but I would like to find another way.

Thank you in advance.




It is amazing how fast I get answers on this forum.
Thank you very much !!!