@donald

If you want to have more than two videos, you'll need to switch to some other setup. Something like this: Download (same file, just added a third Scene)

@woland

THANK YOU SO MUCH !

Your option 1 is so perfect !

I will use it into future, adding another selector to be more precise for each video uploaded (to get a more precised chroma key, more adapted for each video/each video will have its own settings)

Thank you again !

@tr742

Isadora 4 Prices: https://support.troikatronix.com/support/solutions/articles/13000106528-pricing-for-isadora-4-and-izzycast

Isadora 4 System Requirements: https://support.troikatronix.com/support/solutions/articles/13000105607-isadora-4-system-requirements

@fred said:

@dbini

https://www.bigredbutton.com.a...

 haha that's amazing! #bookmarked 

@tr742 all the info you need should be here: https://support.troikatronix.c... 

hi 

Been running isadora 3 for 2 years on mac with high sierra

Want to upgrade to 4 

Cost & mac system upgrade info please ?

Tr742

@dbini

https://www.bigredbutton.com.a...

@dusx Nice..I didn't see the kiosk requirement  (note to self..new glasses) 

@dbini said:

I wonder if Python could achieve a similar result?

 Python or Javascript, shouldn't have any problem with this.
Just restart a timer when a new value arrives, and have a pulsed trigger that has the time checked constantly, making updates as needed.

Similar to @jandraka
I have used something like: Delcom Products Inc. - Product Details Page in the past. 
Not the cheapest, but easy and flexible.