How use different session in same flow

I use dashboard as param flow,

open 2 browses (chrome,ie) access the flow, then enter text separately.

but each browse's text will cover the other one

what can i do,why not support session data isolation?

There is only one flow that the dashboard is looking at. So only one set of variables to be updated. If you update a variable then it will (or should) then be the same for all views of that variable.

You are of course free to implement your own dashboard. The ui_builder project may be a good place to start as it allows you to use any libraries you like. Though again it will be only talking to a single Node-RED flow so still a single set of variables.

thanks,I try uibuilder