How to store anonymous SQL parameters in dbeaver?

In DBeaver 21.3.3 I can use variables like:

@set myvar= 'something'
select * from mytable where col = :myvar

But how to do this for anonymous SQL parameters:

select * from mytable where col = ?

In Windows | Preferences | Editors | SQL Editor | SQL Processing | Parameter section | I checked "Anonymous SQL parameters" and left other parameters untouched.

Now every time "Bind parameters" dialog opens and I have to type in parameters. How can I store these bindings in script?