There are multiple things you can do..
Right now you don't have a break set. If you did, it would show up in that list in the bottom right.
Option 1: Let the bot choose breaks for you
At the top you can set "random breaks" or a template for the bot to create breaks for you.
You have min/max playtime, min/max breaktime and any # of breaks. When you select create random breaks, the bot will take the values you have in these areas and create the number of breaks you have as desired. And the created breaks will fall inline with that template.
For example, in your screenshot the template is set to create 5 breaks, all with playtime between 2.5-3hrs and breaktime at 7hrs. When you press "create random breaks", the bot will create 5 breaks in succession, each that are 7hrs long (with some variance between the exact time) with about 2.5-3hrs between each break for the bot to continue playing/botting.
OR
Option 2: Choose your own specific breaks (start & stop time exactly as you want it)
You have the option of setting your own custom break and not have the bot do it for you.
You'll see start time and end time options in the bottom left corner. You can say exactly when you want a break to start and when you want it to stop. The exact time for each (i.e. exactly at 2hrs 43 mins 5 secs and stop at 5hrs 2 mins 18 secs).
After setting those fields, you can either click "add direct" which will put your break directly into queue exactly as you have it listed.
Or you can choose "Append to end" which will append those times to the end of the list BUT will take into account the list of breaks you already have(in case you already have breaks in your list & want to add one with exact break length & play length).
For example, if I set to start at 3hrs and stop at 5hrs. So I want the break to be 2hrs long. Assume I already have a break that is supposed to start at 1hr and end at 2hrs runtime. If I press "add direct", I will have a break start at 3hrs and stop when runtime is 5hrs. If I press "append to end" I will have a break start at 3hrs AFTER the last break ended (so start at 5hrs runtime in this scenario) instead of at exactly 3hrs runtime.
You have a bunch of different options to choose from. Maybe that causes the confusion..?
The top lets you create a template and when you press "create random breaks" the bot will follow your template and create breaks for you. The bottom left section lets you specify your own start/stop times without needing the bot choose for you. The list in the bottom right is the list of all breaks you have added. When it is empty, you have none. When you have some, they will show in the list. There is no enable/disable breaks, either you have them added or you don't. If they're added, the bot will take them.
The idea was to give the average person as much customization as possible but honestly if it is confusing, I'll take a look at reworking it.
@plot98 i'll change the design with the next UI overhaul. In the meantime your guide is above. It looks like you only need to use the top portion of the breakhandler UI. Just choose the min/max settings, press create breaks and they'll be added to the list.