Hi BillC,
Thank you for your update.
1) RightToLeft using UserControl in Docking Manager:
I am afarid that I was not able to reproduce the issue mentioned here. Please find the simple sample in the following link:
http://websamples.syncfusion.com/samples/Tools.Windows/F62075_1/main.htm2) Yes. Currently it is not possible to use DockingManager with the Panel.
Please let me know if any concerns.
Regards,
Fathima