Development tools for Zephyr on STM32Workbench for Zephyr: VS Code extension to set up, build, flash and debug Zephyr applications on STM32.Devicetree manager: browse, edit and visualize Zephyr devicetree, STM32CubeMX-like for Zephyr.
UPD.
It's only ADC1 in IO register view (base addr 0x50040000)
Where can i find and how can i edit (manually?) device desciption file (or something else) to resolve this (add ADC2 & ADC3 instances)?