Navigation Form and Sub forms (1 Viewer)

Is it possible to obtain the recordset of a datasheet sub form, nested in a structure like this:

Navform --> Sub form --> Sub form(datasheet)

The code i'm using:
Set rst = [Forms]![Navform]![NavigationSubform].[Form]![DS].Recordsetclone

The error code is 438: Object doesn't support this property or method.

Thoughts?

Thanks.

I think I got it, after reading this post:

https://access-programmers.co.uk/forums/showthread.php?t=294678