Using Fedex Freight and UPS?

I ship most of my products by UPS, but have a hand full of heavy items that need to ship by Fedex freight. Is this possible to setup?
also I would think that if both freight and non-freight items are in the cart the heavy item would ship fedex while the others ship UPS.
Any help is greatly appreciated. Thank you

if it makes any difference all the freight items are in one category, no UPS item are in the category and no freight item are in categories with UPS items. Sorry to post again thought this info. might help.

At this time, there is only the choice of one shipping method per order ...

If you had a mixed order, and could test if the order contains 1 or more Products for FedEx ... can the whole order go FedEx?

Ajeh,

Thank you for helping. If a freight item is in the a mixed cart I could ship all items by freight, if this would make it easier.
Thanks again

You could test the contents of the cart, for example to turn on FedEx when 1 or more from categories_id 27 is in the cart:

// global cart if not already done in the function of the shipping module
global $cart;
$chk_freight = $_SESSION['cart']->in_cart_check('master_categories_id','27')

if ($chk_freight >= 1) {
  $this->enabled = true;
} else {
  $this->enabled = false;
}

where 27 is the Freight only category ...

Then, based on the results you can control whether the FedEx and UPS are enabled or disabled by controlling the $this->enabled in the modules ...

Where would I try that code? is Fedex XLM the module I should try?
I assume that I would want to add code to the UPS file that would turn UPS off if category 27 is present in cart, right?
Thanks for your help

In the UPS shipping module:
/includes/modules/shipping.php

You would add the code, reversing the settings, below the code:

    // disable only when entire cart is free shipping
    if (zen_get_shipping_enabled($this->code)) {
      $this->enabled = ((MODULE_SHIPPING_UPS_STATUS == 'True') ? true : false);
    }

In the FedEx shipping module there will be a similar line for the:
$this->enabled = ...

And you would add the code below that ...

thank you for your help. I will work with it to see what I can come up with.