coloring a large sized file

[gazorenzoku]

Is it possible to select an area in a layer and use the control-backspace fill function (on Windows... I don't know what keys give the same effect on a Mac) to fill it in with a multiply-fill effect so you don't accidently fill in any other areas?

I am working with extremely large files and want to keep to one layer if possible. I usually use a seperate layer set at multiply when working with smaller files... I noticed that the regular fill tool could be set to multiply mode, but I don't know if the control-backspace fill function can be set to multiply mode...

Also, any other tips for coloring with large sized files would be appreciated.

Thanks!

[reinx]

I would try to add another layer (even though you dont want to) and set it to multiply and then flatten it as soon as you do the effect you want.
-Casey

[Tim Mallos]

Look into using the channels in Photoshop to save selections. Much, much smaller than separating colors on different layers, very powerful!

T