Please provide a keepContent option for the Drawer so that the developer can configure whether the content is destroyed when collapsing the component or not.

The Drawer currently destroys all inner content when collapsed, and recreates it again on expand. This imposes additional overhead when using Kendo UI for jQuery components inside the Drawer, as they need to be destroyed on collapse and reinitialized on expand.

Further scenarios in which having a keepContent option, similar to the one in the PanelBar and TabStrip components, is using forms or other components that need state persistence within the Drawer.

Before we started using kendo ui, we implemented this slidemenu. - https://www.primefaces.org/primeng/#/slidemenu
So far I haven't been able to find anything comparable within kendo ui, but the closest thing is https://www.telerik.com/kendo-angular-ui/components/layout/drawer/how-to/hierarchical-drawer/

The drawers could slide between options, instead of expanding out into the page.

Martin, on your team, managed to put together https://stackblitz.com/edit/angular-ckjeuc?file=app%2Fapp.component.ts which is awfully close to accomplishing what we're aiming for, but is lacking the smooth animations between menu layers that we'd like. Ticket ID: 1448501