Plot current position and history position

[berlala]

Hi,

I have a signal for the positions in [x,y] and a plot layout is used to draw the history position.
The config is as follows.

But I also want to plot the current position. It seems not just simply add another y_m channel and plot current.

Any suggestion?
Thanks in advance.

[defunctzombie]

Does the current position come from the same topic /display/state_estimation.y_m?