HUH?

The PIC's supported by the different versions of PBP3 are controlled by PBP3, not MicroCode Studio.
MicroCode Studio simply puts a list of the supported devices in the drop-down box.
For the Experimenter version, that list is supplied by the 2.DEVICES file in the PBP3 folder.

The Experimenter version has always supported the 16F886, and the 16F887 has never been included.

As of yesterday, PBP3 is now at version 3.0.5.x
Several chips have been added to the EXP. version.

Download the latest version from ...
http://pbp3.com/downloadtrial