If you make a lot of customization to per tag options and you want import/ export these settings you could easily do so with Tools->Import/Export Settings dialog.
To export your custom settings to a vssettings file, launch Import and Export Settings Wizard from the menu by choosing Tools->Import/Export Settings. Click ‘Next’
In the next page of the dialog, uncheck ‘All Settings’. Expand Options->Text Editor node. Check ‘HTML Tag Specific’ checkbox as shown below
Click ‘Next’. You can change the location and filename to save the settings file to. Enter the location and name and click Finish.
You can Import these settings by using the same Import/Export Settings wizard and choosing the ‘Import Selected Environment Settings’ option in the first screen.
SDET, Visual Web Developer