How to Create an Upward Dropdown Menu in Webflow Navbars

Hi there, first time here, In short, how do I have a Navbar menu dropdown move upwards? There isn't an option within Webflow (down, left and right only). I tried having a look at Navbar 15 (https://www.relume.io/preview?cid=navbars/navbar15_component) to see how that works and noticed that, also drops down in mobile. Is there a workaround that someone could point me towards? All the Webflow forum posts about this are a bit old and I'm using Relume so thought I'd reach out here. Thanks!