Master-Detail grid

I want to replace the DevExpress grid in my database projects with the TMS dbadvgrid. Is there a way to do nested master-detail grids with TMS? I don't want to have multiple grids on the form as in the sample.

Sorry, unfortunately at this time there is no built-in support for nested master-detail inside the grid itself.

Any plans?

On short term at least, there are no plans.
You might consider to add on the feature request list:

http://www.tmssoftware.com/site/fr.asp