When the script below is active, some functionality is added when an OpenStudio window has focus.

The following shortcuts are available, and work on the most recently run .osm-file (based on modified date):

• Ctrl+R: Opens Resultsviewer (and goes to tree view + collapses the tree)
• Ctrl+E: Opens the .err in Notepad++
• Ctrl+D: Opens the folder in explorer
• Ctrl+Q: Closes Resultsviewer (so that no file conflict occurs when running simulation)

I didn't do any thorough testing, so it may need modifications on your system. Feel free to use/modify.

SetTitleMatchMode, 2

; OpenStudio Shortcuts
OSDir()
{
    NewestTime = 20100101000000
    NewestName = 0
    Loop, %USERPROFILE%\AppData\Local\Temp\OpenStudio*,2
    {
        ;dt = %A_LoopFileTimeModified%
        FileGetTime, dt, %A_LoopFileFullPath%\resources
        EnvSub, dt, %NewestTime%, seconds
        if dt > 0  ; Source file is newer than destination file.
        {
            IfExist, %A_LoopFileFullPath%\resources\run ; Folder contains run data
            {
                ;NewestTime = %A_LoopFileTimeModified%
                FileGetTime, NewestTime, %A_LoopFileFullPath%\resources
                NewestName = %A_LoopFileFullPath%
            }
        }
    }
    ;Newest folder is %NewestName%
    return %NewestName%
}

#IfWinActive, osm ahk_class Qt5QWindowIcon

; Open most recent SQL database in ResultsViewer
^r::
OSD := OSDir()
Run "C:\Program Files\OpenStudio 1.6.0\bin\ResultsViewer.exe" "%OSD%\resources\run\5-EnergyPlus-0\eplusout.sql"
WinWait, ResultsViewer, 
IfWinNotActive, ResultsViewer, , WinActivate, ResultsViewer, 
WinWaitActive, ResultsViewer,
;MouseClick, left,  136,  182
ControlClick, x136 y182
Sleep, 100
;MouseClick, left,  152,  208
ControlClick, x152 y208
Sleep, 100
Send, {DOWN}{LEFT}{DOWN}{LEFT}{DOWN}{LEFT}{DOWN}{LEFT}{DOWN}{LEFT}{DOWN}{LEFT}{DOWN}{LEFT}{DOWN}{LEFT}{DOWN}{LEFT}{DOWN}{LEFT}{DOWN}{LEFT}
Return

; Open E+ Error file with Notepad++
^e::
OSD := OSDir()
Run "C:\Program Files (x86)\Notepad++\notepad++.exe" "%OSD%\resources\run\5-EnergyPlus-0\eplusout.err"
Return

; Open Directory containing files
^d::
OSD := OSDir()
Run explorer.exe "%OSD%\resources\run"
Return

; Close ResultsViewer so no file conflict occurs when running simulation in OpenStudio
^q::
WinClose ResultsViewer ahk_class Qt5QWindowIcon
Return

#IfWinActive