Basics of Scene interface

[knuth 28]

After having done a few scenes (LUA scripts) I am a little confused by some of the options offered by the HC2 interface. Here are three examples:

1. The overview

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Some of this is obvious, like the scene name and the number of instances currently running. But why do the last two scenes, both running, show different run/stop buttons? And what does the on/off slider signify? I have successfully started scene 3, even though it shows "off". I have also tried to set it to "on", but it goes back to "off". Question: How are these two buttons, on/off and run/stop to be interpreted and used?

 

2. The detailed view

This view raises several questions:

• Category: Is this category ever used for anything? 
• Max running instances: In my LUA scripts I normally include tests like this: if fibaro:countScenes() > 1 then ... to abort the script if more than one is running. Does that make this number insignificant?
• Run scene Manual/Automatic: The trigger in the LUA script (or a lack of trigger) dictates how the scene is started. For a standard manual script without trigger, what difference does the man/auto setting make? And for a script with %%autostart is it necessary to set the Run scene selector to Automatic as well? 
• Do not allow alarm...: My interpretation is that all scenes that are alarm related should check this box, all other scenes should not. By alarm related, I mean scenes that are triggered by an alarm. Is this good practice?

Edited May 20, 2019 by knuth

[MARCUSP.I.L 16]

Hei, have look at this site, covers most of your questions + many other topics, thought it might help 

 

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[knuth 28]

Thanks, @MARCUSP.I.L , that's an interesting site that I was not aware of. I have now read through the entire section on Fibaro LUA programming and failed to find any references to the questions I had, which are related to the Fibaro HC interface once a scene is established and running. The Synesis site focuses on how to program and trigger scenes. Did I miss something?

 

Anybody else who would like to take a look and provide some guidance?