Hello Vadym, you can customize your hotkeys by going in the Spine settings, then opening the Hotkey file. I couldn't find a binding hotkey, but considering you can select all the bones you need, then click bind
then select the mesh, I'm unsure you'd really need it, however, you should find many other customizable hotkeys that you can set for meshes and other parts of Spine. Settings - Spine User Guide: Files