Multi-select list box


Hi magicians

Is there a quick and easy way to implement a multi-select list-box in an online task?

What I can think so far is calling a sub-task that lists the available options in a table-control plus a side column with a checkbox. On click to the check-box the selection is added in a mem-table or a vector.
Rather complicate and time consuming, since I have to9 implement for many different fields.
Maybe XPA 3.x offers a better option? Or maybe XPA 4.x?

Thanks in advance
Avgerinos Markopoulos

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