Need help!

Anything that doesn't fit into other topics goes here!
Hi, somebody please explain how to create a smooth transition from low to high notes,like waves? In LMMS when i put notes one next to one- it sounds like separated notes, i am extremely need the smooth transition.
that is portamento 'slide' or legato
in lmms only a few instruments can do portamento:
zynAddSubFX
LB302
<most VSTs>
and it vill be in the VSTs you will find the most versatile portamento.
You look for a knob/slider named 'port' 'mono' 'legato'
In the 'bread'nButter' VST synth1 you have it in the lowest part of the GUI to the right 'Portamento'
The knob set the 'slide-time'
Set 'Voice' to either Mono or Legato
http://en.wikipedia.org/wiki/Legato

br
There are two methods.

First one is the "portamento" feature in ZynAddSubFX and others that will glide from note to note.
The second one is to just put the same note over and over in the piano roll and then automate the pitch.