this is a godd thing to practise!
use one finger on each fret!
if you know how to use your fingers you will be able to learn solos much easier!

E|------------------------------------------4-5-6-7-|
B|----------------------------------4-5-6-7---------|
G|--------------------------4-5-6-7-----------------|
D|------------------4-5-6-7-------------------------|
A|----------4-5-6-7---------------------------------|
E|--4-5-6-7-----------------------------------------|

then you can start go up and down so much you like!
bye!