I've got a huge bank of parameters for a Particle system I'm working on. All of the values are automatically sent to lists so that I can save presets.

Previously, every value entered one enormous list (300+ values). I want to find a way of truncating this so that it's a group of smaller lists that all merge into one, allowing me to make modifications to the values that enter the list without having to re-name over 300 values each time.

How can I merge two lists, one after another, and separate them again.

For example - I have the lists [1 2 3( [A B C( [Z Y
They must become a single list of [1 2 3 A B C Z Y
Then be split back into [1 2 3( [A B C( [Z Y

Thanks in advance!

You have a couple of options. For merging lists, you can use the "add2" message for message boxes:

[a b c, 4 5 6(
|

|
[add2 $1 $2 $3(
|
[ ( <-- an empty message box

(You can send the message "set" to clear out the message box.)

For concatenating arbitrary length lists it's a little bit more complex. You could also use but that's a bit slower than the message boxes.

For splitting your example, you could either use a chain of 3 or also use message boxes.