I want a use a component similar to the MultiSelectTree, but where the items in the popup are rendered in a Grid instead of in a TreeView.

We have received feedback from our user group indicating a need for keyboard-based selection for items that are not in sequential order. Currently, keyboard selection functionality only allows users to select items in a continuous sequence. For example, when using Ctrl+Click, all items in between are automatically selected.

Is supporting non-sequential item selection via keyboard something you plan to implement? If not, could you suggest the best approach or alternative solutions to address this requirement?

 
ref: https://www.telerik.com/kendo-react-ui/components/dropdowns/multiselect/keyboard-navigation