expression
if you like; if you want; if it suits you
Used to offer something or suggest an alternative in a casual, considerate way. Similar to 何なら, but with a slightly more tentative or past-tense feel.
See also: 何なら
何だったら、私が代わりにやりましょうか。
If you like, shall I do it instead?
何だったら、駅まで送りますよ。
If you want, I'll give you a ride to the station.