Git merge on MAC don't open 3 ways merge

[leyal]

(it's opened only 2-ways merge)

I follow the instructions here :
http://www.scootersoftware.com/suppo...?zz=kb_vcs_osx

my git version is :
git version 2.18.0

my $HOME/.gitconfig:

[diff]
  tool = bcomp
[difftool]
  prompt = false
[difftool "bcomp"]
  trustExitCode = true
  cmd = "/usr/local/bin/bcomp" \"$LOCAL\" \"$REMOTE\"
[merge]
  tool = bcomp
[mergetool]
  prompt = false
[mergetool "bcomp"]
  trustExitCode = true
  cmd = "/usr/local/bin/bcomp" \"$LOCAL\" \"$REMOTE\" \"$BASE\" \"$MERGED\"

I installed the command-line-tools but even when i run : "/usr/local/bin/bcomp" "a.txt" "b.txt" "c.txt" "d.txt" it's open a two ways merge ..

my beyond compere version is :
Version 4.2.5 (build 23088)

[Aaron]

Hello,

If you check the About dialog box, are you registered for Standard or Pro? The Text Merge session type is a Pro specific feature. If you navigate to the Home screen, is Text Merge an available button to launch?