How to write a strategy for exit to take a profit

Algos, strategies, code
1

I want to buy a stock if the CLOSE > EMA(CLOSE,15) and exit the position when I have 1% profit. How to write the exist signal since I will not know the value of buy. Is there a provision to do so in coding to know what value the buy was triggered

2

NaMasTe TraDeR,

LONG EXIT codes referring to your trade entry price cannot be coded on Tradescript Language.

3

Without this provision, writing independent Buy and Exit is of no use, since both are related execution. Is there a plan to provide such facility?