This is from dictation.bob1286,
Your post is very hard to understand. I think you are not talking about computers. Maybe you are talking about a light switch in your office. Lacking details, I am just going to assume that you want to have a remote switch for a lamp in your office.
The proper way to install a new switch is to run wires through the wall in accord with local building codes. Do not know of any method for running a light switch extension through exposed wiring.
Anyway, here in the United States a common practice is to have two light switches control one light or possibly electrical outlet. This is done by using switches that are called two-way switches. You have to buy them in pairs and they have to be used in pairs.
At your local hardware store you may find someone that will advise you as to how to install a pair of two-way switches to control one lamp or possibly one wall socket. Bear in mind that the reading on ordinary light switches handle 15A or less.
Here is a YouTube video that explains how a pair of two-way switches are used control a single lamp. He starts out with the use of a one way switch that controls the lamp and then shows you how to replace that one way switch with a pair of two-way switches. I hope this is of some help to you.
https://www.youtube.com/watch?v=vUcqo3HpsO8How you considered a wireless Light control?
Amazon has some for about $30.
Search for
Wireless Outdoor Remote Control Outlet
Or
Remote electrical Light Switch
and you will find it.