hit the "`" on your keyboard to open the console
then type Bind_KP *your wanted key, for example:*home
then type "say *your message*"
it should look like this: `bind KP_home "say TEST"
to change colors: red: ^1 green:^2 yellow:^3 blue:^4 turquoise:^5 purple:^6 white:^7 grey:^8 brown:^9 black:^0
to say TEST in colors: `bind KP_home "say ^1T^4E^2S^0T" (Red "T" Blue "E" Green "S" Black "T"
you don't have to say home, you can say: Home, uparrow, pgup, leftarrow, 5, rightarrow, end, downarrow, pgdn, ins, del, enter, and plus
then type Bind_KP *your wanted key, for example:*home
then type "say *your message*"
it should look like this: `bind KP_home "say TEST"
to change colors: red: ^1 green:^2 yellow:^3 blue:^4 turquoise:^5 purple:^6 white:^7 grey:^8 brown:^9 black:^0
to say TEST in colors: `bind KP_home "say ^1T^4E^2S^0T" (Red "T" Blue "E" Green "S" Black "T"
you don't have to say home, you can say: Home, uparrow, pgup, leftarrow, 5, rightarrow, end, downarrow, pgdn, ins, del, enter, and plus