Arigatōgozaimasu fanOfeeDIY san.
PS : Regarding photos attachment in a single post, you can put up to 25 attachments (max. 2MB total), all you need is just click the tiny words -> (more attachments) when you're attaching photo, its right below the "Browse" button when you're going to select the file you want to upload. Yes, its easy to miss it.
Ahh, that was the reason for the error message.
I tried to make the images to be high resolution and end up making each jpg file slightly less than 1MB,
and end up attaching more than three images being caught with warning of the 2MB.
So I just started to attach one image at the time.
And then the next warning was that I need to wait 30 sec each for next posts.
Probably I will compress more and reduce the file size, next time.
Thinking to do the same for Hioki DT4282.