VBA to use all projects in folder as subprojects

[SamT]

C&P From the help file

ConsolidateProjects Method


Displays the data from one or more projects in a single window.

Syntax:
expression.ConsolidateProjects(Filenames, NewWindow, AttachToSources, PoolResources, HideSubtasks, openPool, UserID, Password)

• expression Optional. An expression that returns an Application object.
• Filenames Optional String. One or more file names of projects to consolidate.
• NewWindow Optional Boolean. True if projects are inserted (consolidated) into a new project. False if projects are inserted into the active project at the selection point. The default value is False.
• AttachToSources Optional Boolean. True if changes in the consolidated project affect source projects. The default value is True.
• PoolResources Due to changes in the object model of Microsoft Project, this argument is ignored. It is retained so that existing macros which make use of this argument do not cause errors.
• HideSubtasks Optional Boolean. True if the subtasks of the projects specified with Filenames are hidden. The default value is True.
• openPool Optional Long. The action to take when opening a resource pool or sharer file. When opening a master project, the value for this argument is also applied to the subprojects. Can be one of the following PjPoolOpen constants: pjDoNotOpenPool, pjPoolAndSharers, pjPoolReadOnly, pjPoolReadWrite, or pjPromptPool. The default value is pjPromptPool.
• UserID Optional String. A user ID to use when accessing a project in a database. If Filenames does not refer to a database, UserID is ignored.
• Password Optional String. A password to use when opening password-protected project files. If Password is incorrect or omitted and a file requires a password, the user is prompted for the password.

Remarks
To specify that a consolidated project should be inserted as read-only, type (R/O) at the end of the file name in Filenames.

If the ConsolidateProjects method is used without specifying any arguments, the Insert Project dialog box appears.

If a Parameter is not specified, the Default value is used.

MasterProject.ConsolidateProjects(Filenames:=projFile)

That is equivalent to

MasterProject.ConsolidateProjects(Filenames:=projFile, NewWindow:=False, _
 AttachToSources:=True, PoolResources:=Null, HideSubtasks:=True, _
openPool:=pjPromptPool, UserID:="", Password:="")