Buy/Sell arrows appearing on all the charts in amibroker

#1
I have two charts in a single sheet in Amibroker. When I try to plot arrows (buy and sell) it works perfectly (arrows are displayed on the same chart where I am plotting them). However, if I run a scan and double click on any of the results, the buy/sell arrows are plotted on both the charts (infact on all the charts on other sheets as well). Is there a way to restrict the arrows only to the chart where I am trying to plot them?

Thanks in advance for your help.