How to customize Frontend order page (payment field)?

[semibratov]

Is it possible to customize Order page through payment plugin.

I want add link to "Print Bill Page"
For example
--------------------------
Your order
.....
Payment: My Payment <LINK to Print Bill page>
.....
--------------------------

Events OnShowOrder not used as I can see

[semibratov]

Dear developers, please answer. Is it possible?