If you hold on-chain BTC in your Ember wallet, you can transfer this off-platform directly through Edge. To access these funds, please download the "Ember - Bitcoin & Crypto Wallet" app from the Play Store or App Store.
From there, sign in using your existing Ember login credentials. Once logged in, you'll see all of your Bitcoin held there!
To transfer this off of Edge:
Tap on the Assets page
Tap on your Bitcoin wallet
Tap on Send
Paste in the wallet address that you'd like to send this to
Follow the prompts