UI inconsistency

[stmartin]

In the text panel alone there can be found two different icons for linking values. And in the transformation panel there is another variation to the icon. Also I did not recognise the icon next to the word gutter as a button. See screenshot attached.

[thomaso]

It is rather consistency:

The first icon in your screenshot shows that two (2) values are linked.
The last one shows that they are not linked.

The single chain link symbol is useful here because the application does not know how many values will come up to link. If you increase the amount of columns you might discover why this position and icon is used.

[stmartin]

You're right about the first and last example. The problem with the single link is that I did not recognise it as such. I thought it was a pill or a paper clip. That has nothing to do with the fact that more than two values can be linked here. 
Also, I agree with the position of the single link, the problem is that I didn't recognize it as a button with a function.