Before

After

hello

it is good indicator but can i change the color because it too big and cover all the candle 

Yes

You can easily modify the colour and size of DoAid from

Make sure you set ColourChangeOnInput to false from

But

To easily modify the colour and size of DoAid from Input Settings

Other Option ,

Press F8 on your computer keyboard

make sure chart on foreground is checked

How to use DoAid indicator to trade
on H4 Time frame When Input Settings are 30:60

When a new High is form ,

wait for Pull back /market price

to come back to either Centre line or Minimum Line

Before Buying

When a new Low is form ,

wait for Pull back /market price

to come back to either Centre line or Maximum Line

Before Selling

The latest update with DoAid automatically change the chart property for modifying chart, to show on foreground on mt4 terminal