The core idea of this grid tool is that you have to concentrate less on the trade entries (this happens automatically time-independent but price-dependant) but rather on the validity of the macro trend. Exiting a trend when it is no longer valid is more important than entering a trade. But as long as the trend is valid, the trader participates exponentially in the overall trend.
It is advisable to start with a basic position and then "set up" the grid on this in a ratio of 1/10.
A major advantage of grid trading is that the average entry price in a trend moves further and further away from the current market price while the position continues to grow.
A small timeframe should be used so that the distance between the trades corresponds as closely as possible to the selected grid gap and since TV backtests are carried out with closed bars.
Before starting a grid, pre-analysis the market to make sure it is trending. Select the grid gap and grid position size that you are comfortable with. Monitor the trend and from time to time take some profit :).
PS: The ADX filter looks interesting.