Use TriggerKeysBL parameter for this purpose, you can write a string with key numbers separated by a space, if the string is empty then the parameter is not used.
If you need to separate times for different keys, you can write more than one key separated with a space or specify time (in seconds) for each key separately in the format KEY1=TIME1, KEY2=TIME2 etc.
Example: TriggerKeyBL 1 2 3 4=100 5 6 7=300 means that strategy will be stopped for keys 1, 2, 3, 4, 5, 6, 7. At the same time the time for the keys:
a) 1, 2, 3, 5, 6 will be set according to the value in the TriggerSecondsBL parameter
b) 4=100 will be set according to its own value, specified after the equals sign (100 sec.)
c) 7=300 will be set as its own, specified after the sign equal to (300 sec.).