Hello,
I will provide you simple desktop application which have keys that describe by you and more key if require and when you press it by mouse click, it will type/action it on active window like MS Word or Excel or any. My app will send that key to your active application. If you press 'A', it will send 'A' to active word etc.
Please invite me to chat to discuss more on the project need.
I have 15 years of experience in .NET technology with C#.Net, VB.Net, Asp.Net, Kendo UI, Asp.Net MVC with SQL Server, MySQL, Oracle, and Access.
If you have any queries/suggestions, please reply to discuss it in detail.
With best regards,
Rupendra Bensh