According to a post by Clip Studio Paint on its Facebook page, it has listened and there are new updates to its software and the liquify tool is included along with advanced 3D primitive shape.
From the screenshot
(Update live Dec 14) Check out the new liquify tool to transform your images directly, like a brush. 3D primitives and 360° panorama materials have also been added to boost 3D capabilities. And support for importing font files! More: https://www.clipstudio.net/en/dl/release_note/