You should be able to use the OPEN WITH , right click on the file and bring up the context menu and select open with. It may already show both versions of EG. If not, select the "choose default program" option and select the application. If you don't want to change the actual default then uncheck that box in the window. You may need to select "other programs" to find the one you want. After you have done this then next file you open should show a menu with both versions of EG as options to open the file. Just get in the habit of right click and "open with".
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