Hello
Thanks for reaching out and raising this question.
The plugin supports one-click collapse order for both LTR and RTL float. However, you may want to add your content and choose text-align right (from WP-Editor) if you wish to display your content within RTL direction.
Since the only feature that plugin provides is creating columns and rows, so in general, we can say Yes it does support RTL in somehow. (as much as Bootstrap does).
All support is handled via a dedicated support forum, available at Community Forums. Please head out there to open a new topic, in case you have any questions.
