I’ve created a plugin that changes the default installation folder based on your example: http://www.genuitec.com/sdc/docs/sdc_admin.html#appendix_c
But is it possible to change behaviour so that users are not allowed to choose installation folder at all?
Reson:
We typically have several scripts depending on the exact location of Eclipse/Ant in Eclipse, so allowing users to choose where to install Eclipse is a possible source of error.