Most KM users whether new or experienced sometimes forget that it’s possible they are not unique and someone may have come across a similar problem previously. The key is to remember that KM has a searchable forum and also user manual and so applying this leads to the following:
A key sentence from this tip is this
KM has already built-in this convenient feature
And you would do well to take a look!
There are other ‘kill switches’ available (I have two of them) - just do a search…