is there any midi fx or function which allows doing strum?

Cubase
7

Here’s how I do it for a four note chord-

Macro:
Logical Editor Preset A
Logical Editor Preset B
Logical Editor Preset C

Logical Preset A:
Context Variable = Note Number in Chord, 0
Position: Add 0.00.00.060

Preset B and C are the same, but Note Number increments by one, and ‘Add’ adds larger values.
(the lowest note does not need to be moved.)