plugin that let you organise the cli args in a pane

I would like the possibility to use Gnome-Do as manager of commandline programms and put some neccesary arguments in the panes, or defaults by a configfile.

Example 1
The command line "echo "message" | mail -s "subject" <email address hidden>", would let me send a message. I would like if there was a plug-in that could let me execute any line, with a alias, and the necessary panes (message and to). The plug-in could store this like 'ALIAS, echo "$2" | mail -s "$3" "$1" ', where the $'s will be replaced by the info from the corresponding panes. (in this case the first pane asks for the email-address, second for the contents of the mail, and the third for a subject.)

Example 2: I use Ubernote, and can post note by sending it to an email adres. This plug-in should be able to use defaults like that email-address in place of $1 in the previous example. Given another alias, like "ubernote" I could send notes.

This could be a very versatile plug-in that allows people like me to organize their actions using gnome-do, without knowledge to write the plug-in, but sufficient knowledge to use command-line applications