Was anyone else first thought at reading this question "Roger Jackson"?

I did!
Immediately after seeing the question coming in...

Shahnawaz,

Splitting tables horizontally has been a long standing request.
(hence the reference by Chris to Roger Jackson)
For the moment the system can not do it by itself.
It is probably best that you enter this request on the SDL Ideas pages: 
https://community.sdl.com/ideas/contenta-ideas/i/ideas-xpp
It might quite well proof to be popular request :-)

That is not to say that it is impossible with the current system.
With a lot of effort I have been able to do for 1 type of tables.
That solution was based on creating a double page layout with the complete table on it.
And with some fiddling in order to mask out the middle part of the top and bottom box rule.
Plus at output we used an auxiliary program that split the double page into 2 single ones.
As you can see a lot of 'workaround' stuff and a lot of if's involved.

There might be other workaround solutions but none of them will be simple to implement and might come with a lot of restrictions.

Thanks Bart for the quick response. Can you provide us the auxiliary program code that you have written so that I can try to split the page into 2 single ones.