using -attedit in .scr file to modify title block attribute values

I'm trying to modify Title Block Attributes values using -attedit without being prompted for old value of the attribute. The only way I was able to make it work is as shown below if I specify old value (100). I'm trying to write an external script (.scr) which will be specified upon draftsight.exe startup, open the drawing, modify title block attributes, save and exit without human interaction. The script does not know the old value, that's why i'm trying to avoid it. I'm using draftsight.

: -EDITBLOCKATTRIBUTE Default: Yes

Confirm: Edit block attributes one at a time?

Specify Yes or No» n

Performing global editing of block attribute values.

Default: Yes

Confirm: Edit only attributes currently visible?

Specify Yes or No» n

Default: *

Options: * to select all blocks or

Specify block(s)» MY_TTL_BLK5

Default: *

Options: * to select all attributes or

Specify attribute name(s)» DRAWINGNO

Default: *

Options: * to select all attribute values or

Specify attribute value» 100

1 block attributes selected.

Specify old text string» 100

Specify new text string» 101

Thank you.

Would this work with DraftSight?