Sir/Madam/Ms - thank you so much! Achieved Basic user in 10 mins but did not find any new Topic tab. So the answer is click on an image that is completely uninterpretable as an unlock. Up until clicking on the bambu logo I never saw Post New Topic icon . . . soon as I did - there it is! 50 minutes after getting Basic User I found your post. Useless UI and yet again thx goes to a consumer - not the manufacturer.