After using any of the Keyword Research methods, all the newly-found keywords automatically land in your Keyword Sandbox by default.
Keyword Sandbox under Keyword Research is a separate module that accumulates the results you've harvested during the research, and allows you to:
If you'd like to skip that step and move the findings to Target Keywords at once, you can do so right from the workspace after running any search (the keywords you already monitor will be marked as Tracked).
In Keyword Sandbox module, you'll find a top widget showing the overall stats like the total Number of Searches, total Estimated Traffic and PPC Cost, average Keyword Difficulty.
In Sandbox, you may also load any keywords manually for further analysis, clicking on the + button and entering the list, one keyword per line.
On-hover, you can access the context menu for each Keyword Group to rename it, move / regroup / ungroup keywords or delete the group along with all contents.
Select multiple Keyword Groups holding CRTL key, and right-click on selection to access the other context menu to move the keywords to Rank Tracking in bulk, or manage the groups.
Switching to any certain Keyword Group, you can see the key performance stats for the group. The stats in the top widget will be recalculated on-the-go for all the keywords currently visible in the table so that you could see the average Keyword Difficulty / total Number of Searches / etc. for any group.
Hover over any certain keyword in the workspace to move it to a keyword group or to the Rank Tracking module, or right-click to manage the selected keywords.
For any keywords in Keyword Sandbox, you can check or update SEO/PPC Data, as well as Keyword Difficulty. Select the keywords, and either hit the Update icon or use the context menu, then choose the factors you'd like to update.
You may sort the data in the workspace by setting up custom filters, and adjusting the list of visible columns; or quickly export the data to CSV.