example...if I modificate the part...the change that I made...willm be reflected in the assemble mode....but...is the contrary possible....if I do some change in the assembly.....is it possible that the change be reflected in tha part..??
Yes. Simply open your assembly file, and, whilst there, right-click the part you wish to modify, then click "edit part". The adjustments you make will be reflected on the individual part file.
thnx very much man.....but,how can I make the same thing while adding a hole ore smth else...is it possible...if I make a hole or a cut.....is it possible that the hole that I made in the assembly to be reflected in the individual part?
If you make a hole or other such adjustment within the context of the assembly without editing a specific part, it won't be reflected upon the individual part files. However, I believe you can achieve the result you want by editing the part you wish to modify within the context of the assembly, and then use whatever adjustments you made as a reference for further modification of other parts.