Here and there in blocks, including the Trailing Stop block, you will see three types of custom input:
Custom (level) - the expected value is like 1.2345 when you mean 1.2345. Whatever value you enter, this will be the value that will be used. If you put 10 and we are talking for SL, then the stop-loss line will be put at price 10. Not 10 pips from the current price, but the actual price of 10
Custom (pips) - you should enter value like 10 when you mean 10 pips. These 10 pips are relative to the current price
Custom (price fraction) - you should enter value like 0.0010 when you mean 10 pips. These 10 pips are again, relative to the current price