Add own row in after one attribute?

[Detelin Markov]

Hi

 

I want to add my own row after attribute size - row where i want to place link to CMS page size guide. How to do this? In my page size is group_5.

 

attributes i lite to be like:

 

size     15mm

Find your size here

Material 

and etc.

 

 

See picture:

 

Thanks in advance