New activity: Variable in sequence and flow charts

@PeCour
There are no bad ideas!
However, in this case, the suggested feature seems to be either just an additional way to implement what’s already possible in Studio or a more complicated way to manage/reuse workflows (depending on how well I’ve understood this suggestion)

The Flow Switch activity can already do this very easily, where you can utilise the TypeArgument property to choose the type of variable with which to switch flows.
The variable you’re suggesting to assign per sequence can simply be one variable that directs the flow down a certain sequence/flowchart.