Fog
have you attempted doing it in d16's synth ? 
 
http://www.d16.pl/index.php?menu=10
 

Hi,  I have not tried the d16's synth . I am not so interested in the 303 sound, but generally in slides and portamento. I can do that using the piano roll editor (overlapped notes) and DiscoDSP Corona or reFX PlastiCZ. But is there any way to do it with staff editor and portamento symbol?

Not sure how well the step sequencer in Sonar supports glide.  worth a try since the sequencer in a 303 is a step sequencer.  There's always the option to use rebirth via rewire.  Have not tried but if it works that may provide the most authentic experience.

dubdisciple
Not sure how well the step sequencer in Sonar supports glide.  worth a try since the sequencer in a 303 is a step sequencer.  There's always the option to use rebirth via rewire.  Have not tried but if it works that may provide the most authentic experience.

thanks again. The X2 step sequencer with glide support would be perfect. I just would like to now what is the easiest ways to do that and I do not like piano roll, I prefer notation and step sequencer.

ctrl+click between adjacent notes activates the glide

scratch that.  that was the old version of the step sequencer .
 

it kind of works but the indicator light no longer shows between notes.

I just would like to now what is the easiest ways to do that and I do not like piano roll, I prefer notation and step sequencer.

The easiest way is to use a softsynth that supports mono/legato mode, and a fixed portamento time.  In something like Rapture, you reduce the Polyphony control from a default 16 voices down to 0.  The Portamento control becomes active, and you dial in the portamento time from 0.0 - 10.0 seconds.
 
In the Step Sequencer, flip the Mono / Poly mode switch to Mono, and create your base pattern.  Flip the switch to Poly, and add additional notes where you want the glides.  By overlapping before or after the target note, you can change the direction of the glide.  In Rapture, "layers' are key.  If the amplitude envelope is still decaying, it counts as an overlapped note (as far as portamento is concerned).

The X2 step sequencer with glide support would be perfect.

This can get a little tricky.  It's going to need some pre-planning, depend heavily on the softsynth, and will probably require some additional configuration.  The SS2 dropdown lists CC:5 Slide / Portamento.  That's a Portamento Time variable, and not too "TB-303-ish".  CC: 65 is Portamento On/Off, and you may also see (rarely) CC:68 Legato Footswitch, or (even more rarely) CC:84 Portamento Control.  Effectively, this CC contains a third byte 'source' note number; gliding to the next note number received; at the rate specified in CC:5.
 
So, it's back to how "XYZ" synth responds to CC messages generated by the Step Sequencer.

The symbols in Sonar's score editor do not create the function they represent. They are purely visual enhancements.

link]http://m.soundcloud.com/js516kquote=ekral[/link]

Hi, here it is more clear:
https://www.youtube.com/watch?v=BWnK7LWOvkU

I hear it now. For something like that, I use pitch bends. I programmed a similar sound into a KARMA module for a song titled "Voyage of Light". Its on my SoundCloud account in my sig below.

http://m.soundcloud.com/js516k

If portamento is not working for you, try pitch bends. Just remember to set the pitch bend range to at least a fifth away (I usually just set it to an octave) to get a more dramatic movement.