For plug-ins listed in the Available Plug-ins
list box

Select the check box next to the plug-in you want to add,
then click OK. The plug-in is immediately available in your PowerBuilder
workspace, and will be started automatically the next time you open
a PowerBuilder session. To prevent a plug-in from being loaded the
next time you start up PowerBuilder, clear the check box next to
the plug in and click OK.