BX 6.1: Yes, just cut and paste the appropriate key into the key request dialog box as BX starts on the platform. Alternatively, if your startup file detects which system type you are using, just set the environment variable above to the appropriate location for that system. EPak and ViewKit share the same evaluation key on both Linux and UNIX, so you can just set it once.
BX 6.0: If you need to evaluate both a UNIX and Linux version of BX PRO with BX 6.0, do the following:
Linux: Copy your license into a file called icslicense.dat and save this file into your home directory.
UNIX: Start BX on your UNIX system and copy and paste the UNIX evaluation key into text box when it requests a license.