Stretch just from one side!

Dear user!
Hi!
How can a simulation box be stretched just from an one side?
Because with this command:
fix 2 all deform 1 x erate ${srate1} units box remap x

simulation box be longed In the direction of X on both sides!

Thanks,
Nili

Dear user!
Hi!
How can a simulation box be stretched just from an one side?
Because with this command:
fix 2 all deform 1 x erate ${srate1} units box remap x
simulation box be longed In the direction of X on both sides!

​fix deform has many options. they are all explained in the documentation.
please help yourself by studying it, which you should​ be doing *before*
writing an e-mail to the list.

axel.