Assign the macroscript to a hotkey. Space bar for example. A menu will appear around your cursor that allows you to quickly switch to different views.
For the installation simply drag and drop the mzp file to the viewport. Go to Customize/Customize User Interface/ Keyboard. And under the group Norman3D select Viewport Swtich and assign it to a hotkey.
EDIT: Fixed an issue in the script that would cause an error on 3dsMax 2010