Canvas - set standard variables for all comboboxes

Currently I need to add for each combobox manually a variable. It would be great and easier for beginners and reduce clicks if a variable is automatically set for comboboxes.

Example:
I create a new combobox with subset Version. Then it should set the target to @varVersion.
If I create a new combobox with Subset Month it should use @varMonth.
If I create a new combobox Product it should use @varProduct.
For Channel -> @varChannel
For PnL Account -> @varPnLAccount
The end user can still change it, but does not need to set it manually.

View this related idea with it: https://feedback.jedox.com/ideas/JS-I-1773