Click a token in
One transaction, and it costs nothing but gas. What you decide is the name, the ticker, where the liquid share goes, and the range the pool opens across. Everything else is a constant in the contract.
The token
The liquid share
minted straight to this wallet, unlocked from the first block
The range
what the whole supply is worth, in ETH, not the price of one token
Before you sign
The supply, how it is split and what every swap pays are fixed in the launchpad, not chosen here and not restated here. Read them in the contract, which is verified with its source published.
A click cannot be undone. The token stays on the wheel for as long as the launchpad exists, and the share that goes into the pool does not come back out.
A name and a ticker are the two things a click cannot do without.