I believe you want to know how to give Specular Bloom to an object in a very simple way, well here you go :
First, select the object that you want, then right click it to go and see it's properties. Once you're there, in the G-Buffer (above the motion blur settings), you will see that there is a setting called Object ID. Set it to 1 (or whatever number you want to use)
Then go Rendering > effects
In the window that pops up, in the effects roll out click add and select "Lens Effects". Then in the Lens Effecs Parameters click on glow and press on that little arrow.
Your almost done now. In the glow element roll out, click on the option tab, under image sources tick Object ID and set to 1 (or what ever number you used) then under image filters un-tick them all and tick hue, then set it's value to a 100. And at last, go back in the parameters and set the size to a low value (e.g.: 0.5)
That's mainly it, now it's just a matter of how much you mess around with these settings. It shouldn't take you that long until you get what you want... I personally got better result by also tick edge an not just hue and in the parameters tab give "use source color" a value of a 100.
i'll post pics as soon as possible to make it more clear.