Contradiction between addons?

In previous post I was told to install "Product Attribute Grid" in order to set quantity next to each attribute (thanks to Kobra..)

http://www.zen-cart.com/index.php?main_page=product_contrib_info&products_id=876

Since I already installed (my colleague actually) a different attribute:
http://www.zen-cart.com/index.php?ma...roducts_id=310

Can they be installed at the same time?
or
must I Un-install the other addon first?

Thank you!

Can they be installed at the same time?
Check the files that they add and if there are any in common the alterations must be merged into a single file

You other link does not go to an addon

OK - Here are the right links:
:oops:

I have installed - Stock by Attributes
http://www.zen-cart.com/index.php?ma...roducts_id=310
(My friend installed that for me actually.. he knows better how to..)

"Kobra" told me to install - Product Attribute Grid
http://www.zen-cart.com/index.php?ma...roducts_id=876

My Question:
Can they live together?
or
Must I un-install the previous Addon first?

Bless you
A.M.

We don't know. As kobra mentioned, you'll have to look through the files in the mods and see if both mods modify any of the same files. If so, you'll have to uninstall the first one, or edit those files so that the changes done by both mods are included.