Defaults
Here's an illustration of the default key binds in Blue Sentinel:

1. Kick player 1
2. Kick player 2
3. Kick player 3
4. Kick player 4
5. Kick player 5
6. Show/Hide banner
7. Show/Hide players
8. Show/Hide event log
9. Disconnect from current session
Changing key binds
Blue Sentinel uses virtual key codes to assign to different mod functions. If you don't like or can't use the default configuration, you can change them in the BlueSentinelPref.ini file.
You can find all of the virtual key codes here: https://docs.microsoft.com/en-us/windows/win32/inputdev/virtual-key-codes
These are in hexidecimal - You'll need to convert them to decimal. This can be done through online calculators, or the windows calculator in programmer mode.
For example, if we want to change keybind 1 (Kick player 1) from NUMPAD1, to the 'F' key you'd first need to find the virtual key code for it:

Now that we know the value is 0x46, we can convert it to decimal:

So the value in decimal we want is 70. Now we can change that in the BlueSentinelPref.ini file:

Save the file, and restart the game for changes to take effect.
I hope this helps.
2 comments
If you're a novice like me you can also use a list for the keycodes.