2.5 unlink texture

supposed that you Alt-D an object to copy it

then it has the same mat and textures then the first object

but how do you unlink the mat or texture from the first object
so that you can change it to somethng else



in the first panel what does the negative sign does?

it look like there are 2 places to add or remove mat
what is the difference between the 2?

if you unlink the mat this does not unlink the texture

but i don’t remember same mat using 2 independant text in 2.49!
how can it be explain ?

i tough text where assign to a specific mat !
cause when you delete a mat the textures are gone too !