How to adjust required component size space?

[Serge]

How to adjust required component size space?

Currently setup does not allow to mix compressed and uncompressed installation (it is one or another, but not both).
I want to write setup which will have some files which are part of setup and protected and some files which are just on a CD and could be copied on hard drive when selected.
For this mater I plan to use "Copy Files" which prevent file to be included in setup but still managed by it. In this case setup is not aware of file sizes which could be consumed by copy process and it is not reflected by "required space".
In Wise IS there was a way to adjust component size by some predefined number.

What could I do to achieve the same thing?

[sinan]

Currently you cannot override the size of components. I have logged this in as a feature request.

[Serge]

might be it will be useful to add ability to select file location from wizard level - include file in a compressed block or leave it as uncompressed file and then have an ability to copy it from uncompressed folder.
It will be useful to able set destination on CD so program can be configured to use CD location when required.