What and how to change/alter _cursor_db_buffers_pinned parameter

Hi,
i wonder what is the consequence of changing _cursor_db_buffers_pinned hidden parameter in the dr db.
as this parameter is regarding "additional number of buffers a cursor can pin at once".

situation:
i was told to make sure the all the parameters in the primary db need to be the same as the one in dr.
this _cursor_db_buffers_pinned is one of the parameters in dr not the same as the one in primary db.

Primary side
_cursor_db_buffers_pinned    131

DR side
_cursor_db_buffers_pinned    203


question 1:
How to alter this parameter.

question 2:
what is the impact if alter this parameter in the dr side same as the one in primary db.