view port use model space

Dear friends,

a Villa Drawing I want give a Bath room Detail, so i want off this villa drawing with out bath room. if i have any modification in this bath room automatically changed the bath room detail drawing in model space not for layout using view port... ,if anypossible in model space, what i choose the part only shown ...

please tell me... (sorry) help me..

Thank you ....

Create the bathroom as a separate drawing and xref it into your drawing. When changes are made to the original drawing they will be updated automatically when the second drawing is opened.

Dear friend,

thaks for your Replay,but if I create a Xref the tolat drawing comming to the second drawing i want open only for bath room if any selection Xref option is there if is possible please tell me step by step...

Create a SEPARATE drawing of the bathroom. XREF that drawing into the SECOND drawing of the villa. Any changes made to the ORIGINAL bathroom drawing will be reflected in the SECOND drawing when opened.