Extract Indices

In the first example, you can retrieve specific indices from a list using zl lookup.

The second example lets you input two values to be set as a maximum and minimum value of a range, and output a series of integers in that range. 

Interweave Lists

While zl lace interweaves two lists, zl group allows you to interweave more than two lists. Retrieve the length of the list using zl, send it to uzi to retrieve the data in each index stored in the coll files, and pack them all to be interweaved by zl group

Interleave two lists

If you have two lists that you want to combine, you can do so using zl object with an argument lace. However, it will only output a list that is twice as long as the shorter of the two lists. Hence, it's best if the two lists are the same length.