New Sophos Support Phone Numbers in Effect July 1st, 2023

force new edge beta to run in sbie

my problem is is with the new edge beta which is based on chromium, but is not chrome. i am running it on win 7 and 8.1. i can't figure out how to force it to run in sbie. if i rt clk and select run sandboxed it does, but with it set as my default browser, when i click links it opens un-sandboxed. new edge beta does not appear in the default box settings list of browsers so how do i add it to be forced?