Taking ALT off an exchange

Hello all,

I have some AptosLaunch Tokens on an exchange and would like to store them off the exchange.
I have created a Petra wallet account, generated an address and sent some Aptos to the wallet to pay the gas fee when activating ALT.

I understand that there should be a “Manage” button to click to activate ALT but there is not so I am unable to progress further.

I would appreciate some help please.