In this guide we will learn how to remap the keys on your TK numberpad to be able to do anything you might want to do. In this guide, we will be using VIA software to reprogram and flash The TK.
First Steps: VIA Install
There are two ways we can use VIA for The TK, through a Chromium-based web browser, or to download the application.
Desktop Application: You can download the desktop application here. Install the application in your desired location. The benefit of the app is that it can be used offline, but will not receive updates unless redownloaded.
Web Application: You can use the web app on this site. The site can only be used on Chromium-based web browsers. The browser also has to be up to date, as older versions of these browsers didn't support HID-passthrough.
Second Step: Downloading the Required JSON File to Remap
VIA only is able to auto-recognize keyboards that are on their database. We are in the process of getting on that database, but it can take a while they migrate over to the web version.
Use this link to download the required files to be able to get VIA to recognize the numberpad.
Third Step: Using VIA
Once we have VIA launched, we can see there are three tabs at the top of the screen. Click on settings, then click on 'Show Design Tab".

Next, we click on the Design Tab, where we can click on "Load Draft Definition' and upload the JSON file from Step 2.

Lastly, we go to the Configure Tab, and we should see The TK's default layout pop-up. From here we can edit each of the keys, layers and create macros. To change a key, click on the key that you would like to change, then click on the key you would like to change it to down below.

Are you curious about how to build your new TK? Here's a build guide on how to assemble.