Record Path is a concept borrowed from TCB.

Just a recap, with TEACUP, if you have /toy/bear.htm and /toy/balloon.htm, /tcb/toy will list both.  Following the same idea, if you have two records in the database with RecordPath being /toy/bear.htm and /toy/balloon.htm respectively, /drb/toy will show these two records (through "view many").

The Record Path effectively assigns a Virtual Page to the data record.  When you add a new record (through "edit many"), the Record Path would default to the current path, hence the Default:RecordPath={recPath} setting in scheme%dbo&.

The same TCB concept of &After and &Before, and the <THEAD>, <TBODY> and <TFOOT> all apply to DRB in the same way.

As with TCB, you don't need to enter all DRB layouts.  Those without a layout will inherit its parent's.