Currently, the pageSizes option of the available Grid's PagerSettings only allows passing a boolean or a number array as possible values. Thus, at the moment, the Grid component allows displaying an "All" option in the pager by implementing a kendoPagerTemplate:

• https://www.telerik.com/kendo-angular-ui/components/knowledge-base/grid-pager-all-option 

It would be great if an "All" page size option could be set directly through the settings of the pageable property by having the ability to pass a PageSizeItem array to the pageSizes option, similarly to how its done in the standalone Pager component:

• https://www.telerik.com/kendo-angular-ui/components/pager/api/pagercomponent#pagesizevalues.