Memberlist - Select multiple plans

It would be good if you could select several plans in the memberlist menu item.

\components\com_osmembership\view\members\tmpl\default.xml
Row 10 add: multiple="true"

\components\com_osmembership\model\members.php
Row 102 replace
$query->where('tbl.plan_id = ' . (int) $this->state->id);
with
$query->where('tbl.plan_id IN (' . implode(',',$this->state->id) . ')');