Question mark not supported in structured templates?

[Vladimir Nikishkin]

Hello, everyone.

I recently updated to org 9.2 from org-melpa, and I have the following issue:

I use org with org-babel to write a book with many examples and illustrations.

I use ob-plantuml and ob-scheme in particular.
The problem is that for ob-plantuml I need the value of point be right
after the :file header parameter, because plantuml always requires a
file name.

For scheme, however, there is no need to write a file name, there are no files.

Is there no way to specify where to put the point in the new version of org?

-- 
Yours sincerely, Vladimir Nikishkin