please can you tell how i can solve the following problem.

i have the meddleast map installed in my garming and when i trye to install the map for lebanon it ask me if i wanna replace the same file name as the same name file for the middleast so i have to remove the middleast map for lebanon map to work or the other way so is the a way i can have the 2 maps working at the same time please help.