Fieldtype cannot be changed from Select to Link in row

I want to update field as Link type from Select in Task Doctype to make it dynamic. But getting error as “Fieldtype cannot be changed from Select to Link in row 9” .
How this can be updated? is there any alternate option to achieve this?

Reference:

i am unable to change the staus options as well. getting error “You can’t set ‘Options’ for field Status” If i can update the options i dont need another doctype. Is there any solution for this?

Reference:

Follow the example of lead status options.

@Rashmi_Jm you can try property setter for options and for making select field to link you should delete the field and save the doctype and again add that field. you can add with same name also( i am assuming its a custom field).