Glide without Sample retrigger

Please find attached example from my amiga module. Part on the far left is heavily modulated by portamento effect. Despite being able to emulate this effect partially it’s very inconvenient to create intricate solo parts this way.
ProTracker 2 clone v1.57 - betho.13.xii.95.mod 2023-09-21 17-52-14.zip|attachment (2.6 MB)
Also I’m sorry for being not as precise as I should. I’m talking about a Tone Portamento

This is the exerpt from ProTracker’s user manual. Can’t wait to hear from you about this.