fpga_editor missing libXm.so

When I try to open the post place & route implementation in fpga_editor from the tools menu, I get this error: `/opt/Xilinx/14.7/ISE_DS/ISE/bin/lin64/_fpga_editor: error while loading shared libraries: libXm.so.3: cannot open shared object file: No such file or directory` I can't "apt install -y libXm" (permission denied) nor can I sudo that (command not found) nor can I su (don't know the root password for this docker image as-built). Any suggestions on how to install libXm?