Express "Enter" in command sequence

I'm a long-time AutoCAD user & have made many custom command shotcuts where "Enter" is expressed in the command sequence by usinf a space. I've had good success doing this in Draftsight but I've run into one issue. One command I've made is one called "Viewres". This command is expressed as:

 ^C^C viewres y 20000

When used this command string sets fast zooms & circle/arc display at maximum. Usually "space" functions as "Enter". The problem I'm having is a command I made called "Super Clean".  The command string is:

 ^C^C-CLEAN A *  Y

This string functions as -CLEAN, A (all), * (to select all names), then "N" (no), so that no confirmation is needed to purge each type of object. The command sequence "stalls" at the * part of the string. In ACAD my command string is expressed the same way, where "space" equals "Enter". What am I doing wrong? Is there another way to express "Enter" in a command sequence?

Also, is there a list of command expressions available for Draftsight? I've hunted but can't find anything.

Thanks!