Drawing a background comment box?

[yoloyacht]

My comments are being disrupted, how do I draw a background or box behind the comment block but in front of the candles?
I tried drawing shape, but it sticks with the candle rather than x-y coordiantes.

[l'andorrà]

@yoloyacht Just select a fixed position with a filling colour for it:

Obviously you need to select 'yes'.

[yoloyacht]

Thanks so much!

[l'andorrà]

@yoloyacht You're welcome.