Any way to change emblems not on xbox?

Games Halo 5: Guardians
1

I just got my spartans never walk alone pack but I’m not with my xbox so I was wondering if I can change the emblem some way other then on my xbox

2

Xbox App? or on here, halowaypoint.
Profile-Customize Spartan…I think.

3

i dont think you can change it on waypoint, you have to wait till youre on your xbox