Did not understand the description of the reference table functionality, however inserting a spce character, just like any other charcter, into a string array is done using either the replace array element function (if you have a cell in which you want the character already) or the insert array element function if you need to actually add an element somewhere in the array...
If what you are trying to do is to add a space charcter into a string already in the array you need to read that string, use the concatinate or other string building functions to insert the space character(s) and then write that string back into the array using the replace array function.
If none of this is what your aiming at, could you please describe the wanted functionality in further
detail?
