R gui on windows how to force to always show the last line of output

Hi.
Googled but did not found the answer for the following little issue.

how to force R gui  on windows (maybe a specific setting)  to always
show the last line of output in the window console.


My program in R makes measurements every 5 mins in indefinite loop and
 prints  results in the console.

The problem:  last messages are not visible,  The scrolling bar of the
gui console  gets shorter. I.e.  you have to scroll for the last
messages.

Thanks if anybody knows the sol to this prob.

SZ