After Importing your bookmarks it needed to be organized. Basket bulk edit allows you to do so. 

1. Just drag your mouse pointer and you can select multiple bookmarks. 

2. Then you can choose more,  just by clicking on other bookmarks

3. Click Edit at Top.

4. Assign a category or color according to your priority or your work pattern. Even the category you want to assign is not in your category list, No issues just write it down and save, we will add it for you.

5. Click Save and it's done.