When is a square bracket variable not a repeating variable?
Also, when is a square bracket variable visible as a merge variable?
In another thread, the business of passing parameters with self-directed URLs was discussed.
In the course of testing this, I experimented with passing repeating variables of the form $var[N]
They don't seem to work. The square brackets seem to be recognized as text but not as repeat identifiers.
You cannot display repeating variable as merge variables on a layout.
However you CAN display square-bracket merge variables on a layout.
You can see square bracket variable in the variable watcher.
But you cannot set another variable to a square bracket variable.
All a bit strange.