'z' and 'x' editing keys

[Spicy_Orange1]

when i was a noob ( yesterday xD), i didnt know about the effects the bind keys had on editing, so i carelessly overwrite the z and x keys to say some smart alec comment or anothe, unaware that it would affect editing (not being able to holf down either key and scroll to change textures, and i would really like it back. i know that to have separate editing and in game bind keys is /bind * [ if $editing [ (for example, solid 1)] [ say good game ]], but i dont know what to write for the editing part where it says "(for example, solid 1)" for the game to recognize the scrolling for changinf textures again.

please help xD thank you