You may have multiple XTEXT controls defined and displayed at once. To do so, you must specify a unique control number (0=first, 1=second, etc.) in the TXC.CTLNO parameter, and use the flags TXF_MODELESS option (so that you can exit the first control without destroying it). See the note next to TXC.CTLNO for information on auto-assigning a control number.
