Seen that link before and is very good. A couple more dcl's for you these are Library code and do as the name suggests can be used in any code, and they can be from 1 to about 20 inputs as max depends on screen size. It is normally 3 lines of code to run including 1 line to load the multi lsp as its a external program, open code.
Multi Radio Buttons.lsp is say a alternative to Initget or simple as yes no.
Multi Getvals.lsp allows as many values as required to be entered.
Multi toggles allows you to set multiple choice options say on/off
There is sample code in each lisp. There are a few more I have not included, You may want to look for RLX he has some brilliant library dcl's as well and of course Lee-mac.com great list dcl's.