Remove a certain % of trade on tradingview

Is it possible to remove only say 50% of a trade when it reaches my Take Profit target?
I want to keep things running without having to open a new trade. Can’t find a way to do this…

Open 2 trades at 50% each and set the target to suit

But that’s double the amount of fee / commission.
I keep reading that fees can eat at your account in a really negative way, but I spose at the amount I would be trading… fees wouldn’t be too expensive.
Just seems weird that people can easily chop off a certain % on metatrader… I can’t use metatrader on mac!