When you say locations, do you mean IP Locations or the Location field which can be entered manually?
At this moments only the built-in reports which are in the reports tab can be edited. Opening any of those reports will allow you edit them and view the SQL query. Other views (which indeed are just SQL queries in the background) cannot be customized.
Updating multiple fields at once can be done in two ways:
- Using the Mass Edit assets button on the asset page as explained in step 6 of this knowledgebase article: https://www.lansweeper.com/kb/393/configuring-and-adding-data-to-asset-custom-fields.html
- If the Mass Edit assets option doesn't allow you to do the changes you want, you can always write a database script which does. If you plan on using database scripts, be sure to create a backup of your installation by following these instructions: https://www.lansweeper.com/kb/94/backing-up-your-installation.html