Re: how to add a range of columns

[Uwe Brauer]

>>> "ESF" == Eric S Fraga <e.fraga@ucl.ac.uk> writes:

> On Friday,  2 Jul 2021 at 12:04, Uwe Brauer wrote:
>> I will have a look thanks (I already thought about commenting out
>> unwanted rows, but that looked ugly).

> The nice thing about the advanced features is they give you full control
> and none of the extra notation is exported.

Ok, I checked https://orgmode.org/manual/Advanced-features.html

I cannot see at the moment how your solution 

#+TBLFM: @<<$3..@>>$3=$1+$2

Could be replaced with the syntax explained in this page.

The problem is the target @<<$3..@>>$3

There seems no option to specify such a range.

smime.p7s
Description: S/MIME cryptographic signature