Michael Hoffman wrote:

Well you'll have your shopping on you, so that's one way.

Is it permissible to go shopping while transferring from DLR to Jubilee?

Assuming the answer is yes ...

What happens if, after doing your shopping but before entering the
Jubilee station, your plans change and you have to go back to DLR?

(Come to think of it, if you're making that transfer, are you supposed
to touch out at the DLR station or not? And in the opposite direction,
are you supposed to touch in?)
--
David of Broadway
New York, NY, USA