Hello, I have a problem with too many layers and I'm not sure what to do, I have data from many places e.g. "geographic data 2012" "geographic data 2013" "land data 2012" "land data 2013" etc and they each have slightly different information, I have put them all on arc and tryed to meagre them but I get an error and some points will not meagre, so I have had to just group them, this come into a problem when I try and perform various analysis on them however as I have over 400 layers and it becomes unfeasible. Please let me know if I am coming about this all wrong and any help would be greatly appreciated. Thank you