This is not possible yet due to the nature of the AMM model. It is not possible to guarantee the final size of your position after the request is made. E.g. if you have a 1000 USD position and give an order to reduce it to 500 USD, other trades in the same block could cause your final position to be above or below your 500 USD target.
To change your position size, either open a new buy or sell order. The new position will be merged with the active (existing) position.
If you have insufficient collateral, you can remove margin from your active position(s) using Margin Mgt. (thereby increasing your leverage).
A keeper (bot) triggers funding at the beginning of each hour.
Deep dive The Perpetual Protocol smart contract will allow anyone to trigger funding after the top of the hour. Once funding has been triggered, it cannot be triggered again until the next hour. In addition, funding cannot be triggered until 30 minutes have elapsed since the previous trigger. E.g. if funding is not triggered at 3:00, and then triggered at 3:35, the next funding will not be allowed to trigger before 4:05.
Funding payments are shown as positive numbers when you made a funding payment (debit), and negative numbers when you received a payment (credit).
See your position history including funding payments in Position History at the top of the trading interface:
Funding payments will increase or decrease the margin of the respective position each time the funding cycle ends.
0.1% Transaction Fees
50% of the transaction fees will be deposited into the Insurance Fund to cover unexpected losses resulting during trading on Perpetual Protocol. The remaining transaction fees are shared with stakers based on their contribution to the Staking Pool.
Stakers are also eligible for fee refunds and other benefits. Read more here.
Fees and fee allocation can be adjusted through governance to keep the protocol competitive in the market.
Currently assets are decided by the team -- please leave a message on our Discord to discuss further. However, we are working on a plan to transition these decisions to governance in the near future.