I suggest contacting the coinomi support, although i did not finalize a tranfer because i want to keep my coins in the app,
it still seems to be working for me.
I can select ENJ, then go to send.
the tab opens for me, reading 'Enjin Coin (Ethereum)' at the top.
Fields shown:
Pay to (Name or address) with QR scan possibility.
Amount(use all funds)
send button


EDIT: https://coinomi.freshdesk.com/support/tickets/new