On Thursday, 15 Feb 2018 at 11:13, Gour wrote:
> Hello,
>
> I have a need to schedule some tasks to be executed several times
> within some period, e.g. 'exercise 3 times per week', no more, no
> less, so I wonder whether it's possible to do it by using sexp diary
> entries?

Not sure if this is possible or not with sexp entries but maybe look at
habits which sound like what you want to do?

-- 
Eric S Fraga via Emacs 27.0.50, Org release_9.1.6-118-g134243