Select from your search result At the search result screen, select the leads you want to assign, and click the [Batch Assign] button.
Tip: as with other entity search results, if you left click the [checkbox] in the upper left corner of the result table, all leads in this page will be selected. ( for example 1-20 out of 123 )
If you right click the [checkbox] in the upper left corner, all leads across all pages in this search result will be selected ( for example 1 - 123 out of 123, even when we only show 20 entries per page )
Now the fun part When you have many leads to assign, you do not want to select the user dropdown for each lead. Instead, determine a number (of leads) to assign to a sales rep, and jump to that number.
For example, if you want to assign 10 leads to JPudski, go to line 10.
And that is it (to recap) The way you batch assign leads to different users is this: jump into the middle of the list. Select a user. All the empty rows above it all the way to the previous assigned lead will be filled with your current user selection.
This way you can assign hundreds of records in just a few clicks.