How to remap keys to work with KVM switch

I have a KVM switch for which the hot-key is ` `. The hot key lets me switch the keyboard, video and mouse from a Windows machine to a Linux machine, but not vice-versa. My recollection is that I used to have it working with an xmodmap remapping, but I no longer have the remapping in my profile and I don't recall what I mapped to what. I feel like my question is asking how do I remap the ` key to the key but somehow get a different result. Normally I would say that is stupid, but the keysym columns, the modN keys and the key notation in xmodmap are all black magic to me and I have no idea what I should be looking for. The fact that I do not see scroll lock` in the list makes me think that something can be done. $ xmodmap -pm xmodmap: up to 4 keys per modifier, (keycodes in parentheses): shift Shift_L (0x32), Shift_R (0x3e) lock Caps_Lock (0x42) control Control_L (0x25), Control_R (0x69) mod1 Alt_L (0x40), Alt_R (0x6c), Alt_L (0xcc), Meta_L (0xcd) mod2 Num_Lock (0x4d) mod3 ISO_Level5_Shift (0xcb) mod4 Super_L (0x85), Super_R (0x86), Super_L (0xce), Hyper_L (0xcf) mod5 ISO_Level3_Shift (0x5c)