Inject widget value in address

Community Usage questions
1

I have the following address “/TrackList/0/RecordEnable”
How do I “inject” the value of the object inside the address?
e.g. my button has a value of 55 so the address should become “/TrackList/55/RecordEnable”

2

The most simple way would be to use the widget’s script property to send the message:

send('/TrackList/' + value + '/RecordEnable')

It’s also possible to set the address property to
/TrackList/@{this}/RecordEnable
but it’s less efficient.

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