Eclipse shortcut for commenting jsp, xml code

Question

In IDEA, we can comment/uncomment lines in java as well as html,jsp, xml files with the same keyboard shortcut combination. I tried doing that in eclipse but was not able to

Answer 1

I found Ctrl + Shift + C works in JSP too, it works like:

add comment tag line by line, and select the sentences, use Ctrl + Shift + C again can toggle remove the comments.

Ctrl + Shift + / add block comment in JSP, works like:

can use Ctrl + Shift + \ to remove the block comment.

PS: I want to find out, which eclipse shortcut can add/remove <%-- --%> comment in JSP?