Browser toolbar appears at the top of the browser window. 

Here are the functions of individual buttons from left to right:

1. Main menu - open the browser menu otherwise available with a right-click over the browser window

2. Subset menu - open a subset processing menu with operations on browser elements  (same as Process browser on the browser menu available with a right-click)

3. Align - align the browser window with the element window for convenient review of elements in the browser. Note that Synchronize button (below) must be down for displaying elements in the element window as the selection changes in the browser
4. Review - review all material in the browser, e.g. before an exam (including elements that are not outstanding)
5. Topic review - review all topics in the browser (including non-outstanding topics)
6. Memorized - open a new browser will all memorized elements included in the present browser
7. Items - open a new browser with all items included in the present browser
8. Topics - open a new browser with all topics included in the present browser
9. Checked - open a child browser with all checked elements (checkmarks can be seen in the leftmost column of the browser). For example, in the picture, items related to WW2 have been checked in the browser and can be opened in a new browser with by clicking the button Checked
10. Unchecked - open a child browser with all unchecked elements 
11. Sources - open sources of all elements in the browser. Sources are top-most topics from which sub-topics, extracts, sentences, cloze deletions and/or Q&A items have been generated in incremental reading
12. Sort - sort the browser by the position of its elements in the contents tree (root first, first child of the root second, etc.)
13. Schedule repetitions button - save the content of the browser in today's repetition schedule. You will most likely want to use this button for optimizing the sequence of outstanding repetitions. You may, for example, begin the sequence with short-interval items, or with difficult items, or with most severely delayed items, or with long-interval topics, etc.   
14. Advance topics - shorten the interval of topics listed in the browser. If you, for example, specify the maximum interval as 100, all topics with longer interval will receive intervals randomly dispersed within the 1..100 range. Topics with intervals shorter than 100 will remain untouched. Advance topics executes mid-interval repetition on the affected topics (unlike Advance items)
15. Advance items - shorten the intervals of items listed in the browser. If you, for example, specify the maximum interval as 1000, all items with interval longer than 1000 will receive intervals randomly shortened so that to schedule a repetition between today or the day when the interval reaches 1000 days. All items repeated before 1000 days ago, will be scheduled for repetition today. Unlike Advance topics, Advance items shortens intervals without executing a mid-interval repetition (which would be illegal from the learning process standpoint as no repetition can be considered executed without you actually reviewing it). Important! Abusing this option can lead to serious side effects in learning such as inadvertently sending important items to very long intervals by lumped repetition of similar items in a very short period of time
16. Postpone - postpone all outstanding elements included in the browser 
17. Randomize button - randomly mix up the contents of the browser. You can, for example, randomize the browser before scheduling its content for repetition with Schedule repetitions (above)
18. Apply template - apply a selected template to all elements in the browser
19. Insert picture - add a selected picture to all elements in the browser
20. Spread priorities - set the priority of all elements in the browser (increase, decrease, or spread within a selected range) 
21. Save subset - save the browser into a subset file
22. View - display the currently selected element in the element window. Note that you will not need this button if the Synchronize button (below) is down, in which case the element window will always display the element currently selected in the browser
23. Find - search for texts in the title column starting from the currently selected element
24. Synchronize button - makes sure that each time you change the selection in the browser, the selected element is displayed in the element window. When this button is up, changing the selection in the browser has no effect on the content of the element window
25. Locate - find in the browser the element that is currently displayed in the element window. Note that you will not need this button if the Synchronize button (below) is down, in which case the element window will always display the element currently selected in the browser