Creating a watermark that moves every so many seconds to a different corner without manually marking

I just implemented an automation for this in my (paid) extension Automation Blocks for Pr.

How to use it:

1) download and install Automation Blocks (works also with the trial version)

2) download the automation XML file I wrote (you can also find it in the Community Library at 

Clips/Keyframes/Add Motion/Selected Clips - Jump Between Corners.xml

3) Open Automation Blocks in Premiere Pro and load the tool downloaded in step 2 (using the "load" button in the Automation Blocks menu)

4) The inputs panel of Automation Blocks now contains the user interface of the tool. Set the hold duration parameter to 10 for 10 seconds
5) put your watermark layer in the timeline and place it in one corner (using Motion->Position and Motion->Scale in the Effect Controls)
6) make sure the watermark layer is selected in the timeline and run the tool using the "Run Script" button of Automation Blocks.

Automation Blocks will then generate a hold position keyframe on the clip every 10 seconds, placing it on one of the four corners.

The positions it picks are calculated based on the positition the layer has when the tool is launched. So if the layer is in the top left corner, for example, with a 10% margin, then Automation Blocks will use a 10% margin for the other corners, too. note that this also means that when the layer is exactly in the middle of the comp, it will always stay there. So make sure to really put the layer in a corner before running the tool.

One way would be to create a transparent video with just the watermark and do the 4 corner moves, copy and paste to make 8 moves, copy and paste again to make 16.... etc save to 9 hr video and then add it on a higher track on your edited main videos