Bitfinex market ordet: How to specify the amount of BTC I want to buy for

[kenneho]

Hi.

I have some satoshis on Bitfinex, and would like to buy som Streamr using market order. On https://www.bitfinex.com/t/DATA:BTC, under Market form i choose "market", and can fill inn the amount of DATA I would like to buy. But I don't want to fill in how much DATA I want to buy, but rather fill in the amount of BTC I'm willing to spend.

Is it possible to do this on Bitfinex?