I am loathe to add a general command that no one will ever type in the command line or put in a command script, and that completely depends on the state of a running graphical tool (e.g. the check states of the model panel Skip buttons).  Nonetheless, there is nothing stopping you from defining a special-purpose command for your needs.  There are many examples in the Chimera Recipes pages (e.g. Connect nearby atoms | ChimeraX Recipes).  In your case, since the commands you're defining takes no arguments, the corresponding Python functions would take only a "session" argument, and you could omit the 'required' and 'keyword' arguments in their CmdDesc definitions.

The actual Python functions would be pretty simple: