Google doc editor sync

Sorry for the late reply!

There is no current way to automatically download the data when the Editor is opened.
The "In-Editor check Frequency" is designed to warn you when the editor source is not up-to-date with the google spreadsheet, so that the developer know it has to go and import it.
This was done because downloading the data can take some time depending on your connection and developers may not want to have that process running in the background without they knowing and potentially slowing down the editor without notice.

Said that, I could add another option (not just the "In-Editor check Frequency"), that not only shows the warning, but opens a popup with the warning and an Import or Cancel button. So, that if a change is detected, you could download the new data right away or do it manually later.

Will add that to my todo list for one of the next releases.
Hope that helps,
Frank