Bitwig's own tutorial channel demonstrates how to combine two oscillators in The Grid and use pitch and frequency offsets to build a wide, characterful synth foundation. Starting from a default triangle wave, a second oscillator is added through a mixer, giving each source its own independent level.
Setting the triangle's pitch ratio to 300% places it an octave and a fifth above the pulse oscillator, creating harmonic depth from just two sources. A small frequency offset then detunes the triangle slightly from the pulse, introducing a slow beating effect.
Because every module in The Grid outputs stereo by default, that frequency offset can be split asymmetrically: the left channel tunes up by 0.93 Hz while the right tunes down by the same amount. The result is a gentle, organic stereo spread that doesn't rely on any dedicated widening plugin.