getting screen position of items in list?

[drizzt]

Hi, I am new at AHK so forgive newb question.
I have a program that has a listview with a bunch of items in it. I want to drag some of those items into another program.
I was able to get the items in the list and proved it by showing them in a message box as follows

ControlGet, myoutput, List, , SysListView321, C:\Intel\Logs\ ahk_class FM
MsgBox %myoutput%

However how can I do the following:

I have an excel sheet open with certain values in a column. I want to see if that value is in the list and then go to that mouse position of the found value in the list and drag that somewhere