Unit Abbreviations on Stake Reports

I am looking at various reports on LCR (I am a stake assistant clerk for membership) and on reports like Unit Statistics, some of our units have an abbreviation, while other units just have a random alphanumeric code for their "name" in the column headings. Is there any way for me to change those abbreviations/codes, either through LCR or through stake MLS, or does each unit have to do it in their own MLS in System Options?

You can change the abbreviations in stake MLS by going to System Options and then selecting the Unit tab.

Thanks!