you have 6 flex strips with 50 nodes on them (150 pixels)?
something like a ws2811 flex strip? or do you have LOR ccr's strips?
if you put them out horizontally you will have 6 rows of 50 node each. 6 rows will be somewhat a challenge for showing text, it can work if you scroll the text either up or down.
you do not need to do anything in LOR , you can create the model for this scrolling text display in xlights.
how many non rgb channels do you have in LOR? Are they configured for the LOR protocol or DMX?
You want to get the SETUP set correctly before you go to the NUTCRACKER tab.
scrolling text is tribial as long as you have the SETUP and the model created correctly