Can I apply for a DTV visa at the London Embassy without prior proof of cooking skills?

Hi, I meet the age and financial requirements for Non-O and DTV. As I plan to do some remote work I think the DTV is better for me. I've not started the remote work yet so I will be applying for the DTV by going the soft power route and taking a cooking course as I love Thai food and cooking! I read a post somewhere that the Embassy required them to show a profile. I do not have this and wondered if anyone has recently successfully applied from London Embassy without needing to show prior proof of professional cooking skills? Also can you swap between the soft power options? Eg start with cooking, later have some medical appointments when returning to Thailand?