Extended bottom toolbar (sheet) needed


Is there in v2 a component like extended bottom toolbar (fixed layout) ? By “extended” I mean having no predefined height thus allowing to inject extra html into it (some text, may be list, etc. in addition to a few buttons) - more like a sheet aligned to the bottom (display: fixed), extendable by height and not modal.

If there is no any, please tell me a closest component that could be easily modified/adapted to what I need.