Hello,
Experimenting with all kind of LFOs, I am trying to make a step LFO (# drunken walk LFO).
For now, I manage to to the following bu I doubt it is efficient.
and I would like to make semi-random steps in the walk (each step could be lower than the previous one, provided that the overall shape of the wav form is preserved).

Any idea how to achieve this? Thank you for help.

Like this?
Here I'm using a phasor~ to generate a sinewave and then using samphold~ to create consistent steps for the LFO.
But, now that you mention semi-random steps, then you could have a second LFO in a different frequency controlling the samphold~ output.
Using a source like noise~ could achieve those semi-random steps:

Thank you a lot ! What an elegant solution and it works like a charm.!