Change amount of pre-authorized payments

we will need to charge for loaner $30 daily. I had put $1 for now to authorize the card. how will i be able to change the amount? nothing shows up in square.

Should you need to charge a different amount from the pre-authorized amount, that is only possible if you use Stripe payment processor. For other payment processors, you can only collect payments based on your pre-authorized amount.

How-to-enable-payment-authorization