How to set typing to VCE Events

[Freek]

How do you set it so if you type something in the chat, it will activate something. I had asked previously, but people told me to use VCE, and I don't have experience with VCE so yeah. Is it with the standard VCE, or is there an extra add-on for it?

Example:

You activate a brick, and it asks a question. You can type the answer in the chat and it opens the door.

[Ad Bot]

[Mold]

You type the stuff and it gets stored in <var:cl:lastMsg>
You can then click the brick again and do
onActivate -- Self -- VCE_ifValue [<var:cl:lastMSG>|==|lololomgcool]
onVariableTrue -- Self -- contentStart
onVariableFalse -- Client -- centerPrint [thats wrong]

[Freek]

Thank you!