Best way to change up to 20 controls on the main VI from a subVI

Hi Community,
I have been searching for a good solution for this all day but couldn't come up with anything good. I have around 20 controls on my main VI. I need to access / change their properties from a subVI. ALL the controls are inside a Cluster. I know I can create a reference for all my controls put them in a cluster or array and link it into my subvi ... However this way I end up with a lot of icons on my block diagram ... Does anyone know I better solution to my problem?
Thx you for your support
Jan

Hi Jan,
I'm not sure if I clearly understand your problem...
It's possible to use the reference to the cluster on the main VI front panel as an input of the sub VI : in the simple attached example, the sub VI changes the values of the numeric controls in the cluster in the main VI.
Best regards,
HL
PS. Sorry, it's a french version of LabVIEW
Attachments:
Main VI.vi ‏7 KB
Sub VI.vi ‏8 KB
Example.png ‏46 KB

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