Good luck to pay and then you do not full fill the requirement. There are no clear info about employer, freelancer, aso.
So you get a 5 year visa if you attend a cooking class, a Muay Thai camp, a seminar or a music festival ? Nobody will believe this. A medical treatment like a date for a breast operation and you get a 5 year visa? Try, pay and you will see the answer.
And I will start to organise Seminars and I become a billionaire
bullshit you can do most of all things, you can repair, manage and run, problem is the licences you need, so you needs Thai person or a built a company