[TYPO3] how do you obtain the tt_news id, back pid and hash in a URL?

[dave typo]

I have included the following typoscript so that links remain when a user
navigates through pages:


config.linkVars = L, print

with this typoscript, I have a link that adds and removes  &print=1 to my
page. Now this allows a page to swap template objects. The content remains
the same on the page, regardless of having &print=1 within the URL.


However, when a user is on a page that has a tt_news single view, we have
news ids, and back pids, and hash.

As a result, the link does not obtain the news id, back pid, and hash....

for example, I can not retain
&tx_ttnews[tt_news]=1029&tx_ttnews[backPid]=90&cHash=5e1b1ac695

when switching between templates.

how can I get links to capture the ttnews relevant data????

much appreciated,

thanks

-dave