All pink and purple blocks are a little bit specific, they must be used in their context. Pink blocks are to be used within a loop created by "For each..." blocks, purple blocks are to be used under "on Trade".
In any case, if you want to trail stop, you must work under "on Tick", because the stop must be always monitored. The thing is that "Trailing stop" block should not be placed right after "Sell" or "Buy" blocks, because in such way "Trailing stop" does not run on every tick.
If you want to separate trades or orders, take a look at their "Group #" parameter.