Forma dropbox sharing issue

[stumped]

i have set up dropbox to work with a forma. i.e. gone throguh all the steps and I see i hae a folder called apps/ratuken Kobo, which the device can access

issue is, I have 2 dropbox accounts so I decide to make thais into a shared folder which my other dropbox accoutn can write to ( I have doen that with other folders in the past and understand how to do it)
but it seems impossible
there is no "share" option on the lowest level folder: ratuken Kobo
there is a share option on the Apps folder ( which contains only the empty kobo subfolder ) but this is what happens
Apps

This folder can only be shared as a link because it contains a shared folder. Learn more
Share a link instead
I assume theat the "shared" folder is the kobo folder, though it so does not says so in dropbox web page

is there any way around this?
I want to share the folder that the forma wil use with 2 or more dropbox accoutnst that I own

if I approach the share a different way, i end up with this after choosing the Kobo folder:
Choose a folder from your personal Dropbox
An app folder can’t be shared.