Exporting Preset
You can export pathfind preset from others in Dungeons Guide.
Presets can contain precalculations, which make exporting/importing presets useful.
Step 1. Go to presets ui
Open /dg -> Pathfinding & Secrets -> Precalculations. You'll be greeted with following screen

Step 2. Choose the preset you wish to export
From the ui, click View or View/Edit on the preset you wish to export.

Step 3. Export
Click Export button.

If you wish to include precalculation as the part of export, turn Include Precalculation on.
Click Export button.
You will get a file dialog.

Rename the export and change the export directory, and click Save

You have successfully exported the preset and you can now share the resulting zip file!