Photoshop :: Can Set Title Painter To Have It Set Layer Size

I have a ton of seamless images I want to make most into tile in this or that project but I don't want to make them all into .pat files because I hate hunting up .pat files plus if I am in the middle of a project with 25 layers. I want to simple pull in the image I want and use it without having to close everything to make a pat file then reopen the project I am on and have to hunt down my pat file to load it to use.

Now I have moved on to using 3D > New Title Painting which works great on a simple layer I need to turn a seamless tile into a pattern for that one project. However I am having one problem. Say I am working on a project where all the layers must be 2500 x 2500 pixels (for example) and I pull in an images onto one of the layers. Can I do one of the two:
 
Can I set photoshop cs5 to let me have different size layers in one project so the title paint can see image size it wants?

Can I set the title painter to have it set my layer size? 
 
The problem I have is when I pull in a seamles image into a layer then make it a smart shape so I can resize it, make it smaller, then use title painter it makes spaces between the tiles.