wiremod/wire — pull request #506 by Ronny95 (2013-12-03 23:05:54+00:00)
Title: Fix #504 Wire buttons in non-wire button tool no longer causes error

The table seems to be an extra list of convar-value pairs. Just went ahead and mimicked garry's code:

list.Set( "ButtonModels", "models/MaxOfS2D/button_01.mdl", {} )