Jut drop the script on the required chart and it will close all pending orders of this symbol in a go.
MT4 Forex Script Characteristics
Platform: Metatrader 4
Time frames: any.
How to install Screenshot Script in MetaTrader 4 / MT4:
Copy and paste the A_DeleteAllPending.mql4 files into the MQL4 Scripts folder of the Metatrader 4 trading platform.
Restart your MetaTrader 4 application (assuming it’s currently open) … or Launch your MetaTrader 4 application
You can access this folder from the top menu as follows:
File > Open Data Folder > MQL4 > Script (paste here)
On the left hand side, look for the “Navigator” window and under the “Common” tab, look into the “Scripts” section
Locate the indicator which you have just downloaded into the folder stated in Step 1
Drag (Click and drag) the Script onto the chart (when you want the task to be performed)
your task should now be executed…