post
https://api.bitfinex.com/v2/auth/w/position/increase
Essentially a reverse of the Claim Position feature, the Increase Position feature allows you to create a new position using the funds in your margin wallet. For more information about this feature, please look to the Increase Position article on our knowledge base.
The Increase Position feature requires a verified or paper trading account. Full verification is required to use the increase position feature to open a long position on pairs with a fiat quote currency.