Greetings from Syncfusion support.
We have checked the reported requirement. We would like to inform you that we have enableSelectionOrder property, that reorders the selected item after selecting the value. The default value is true. If you disable the enableSelectionOrder property then, the selected value will appear in the same place itself. Please refer the below code,
<ejs-multiselect id='multiselect-checkbox' #checkbox [dataSource]='countries' [placeholder]='checkWaterMark'
[fields]='checkFields' [mode]='mode' [popupHeight]='popHeight' [showDropDownIcon]='true' showSelectAll='true'
Also, we would like to inform you that we don’t have support dragging the selected item. Please check the sample whether it met your requirement or not.
If not, could you please share the exact requirement, based on that we will try to provide the solution.