Alter prior EFS return value after newbar?

[bfry5282]

If using drawTextRelative, or similar, it's possible to specify a negative offset, and markup historical locations.

Is there any way, once a newbar condition occurs, to alter a prior EFS return value, so as to alter its graph in the output pane?

I believe the ref() function can fetch prior values output by a formula, by using a negative offset. Can ref be *assigned* a new value with a negative offset, thus changing the EFS output history after the current bar expires?

So, can we do this, say in a new bar block?

ref(-1)=newValue; // adjust prior bar's output

[ACM]

bfry5282
You can use the setBar() command to modify prior values.
Alex

[bfry5282]

Thanks again !!