autoload/lsp/lsp.vim     |  4 ++--
 autoload/lsp/outline.vim | 15 ++++++++++-----
 plugin/lsp.vim           |  2 +-
 test/clangd_tests.vim    | 26 ++++++++++++++++++++++++++

diff --git a/autoload/lsp/lsp.vim b/autoload/lsp/lsp.vim
index e0cbf214323732f86fe7409015e046b6064bf07d..deb67a274e4e3036713f7838ce1b58f20b92a792 100644
--- a/autoload/lsp/lsp.vim
+++ b/autoload/lsp/lsp.vim
@@ -801,8 +801,8 @@   lspserver.getDocSymbols(fname)
 enddef
 
 # open a window and display all the symbols in a file (outline)
-export def Outline()
-  outline.OpenOutlineWindow()
+export def Outline(cmdmods: string)
+  outline.OpenOutlineWindow(cmdmods)
   g:LspRequestDocSymbols()
 enddef
 
diff --git a/autoload/lsp/outline.vim b/autoload/lsp/outline.vim
index 266fc55db0daa7228ad7021b8614edc6444989de..b42fe649c19b1852ceaec32dc58b929fc1c179ac 100644
--- a/autoload/lsp/outline.vim
+++ b/autoload/lsp/outline.vim
@@ -218,7 +218,7 @@   :silent! syntax clear LSPTitle
 enddef
 
 # open the symbol outline window
-export def OpenOutlineWindow()
+export def OpenOutlineWindow(cmdmods: string)
   var wid: number = bufwinid('LSP-Outline')
   if wid != -1
     return
@@ -226,11 +226,16 @@   endif
 
   var prevWinID: number = win_getid()
 
-  if opt.lspOptions.outlineOnRight
-    execute $':botright :{opt.lspOptions.outlineWinSize}vnew LSP-Outline'
-  else
-    execute $':topleft :{opt.lspOptions.outlineWinSize}vnew LSP-Outline'
+  var mods = cmdmods
+  if mods == ''
+    if opt.lspOptions.outlineOnRight
+      mods = ':vert :botright'
+    else
+      mods = ':vert :topleft'
+    endif
   endif
+
+  execute $'{mods} :{opt.lspOptions.outlineWinSize}new LSP-Outline'
   :setlocal modifiable
   :setlocal noreadonly
   :silent! :%d _
diff --git a/plugin/lsp.vim b/plugin/lsp.vim
index 02db3975bbd60a877cc57094be9e821c06fe440b..c0f1eb575b8bace8a514f8b59f2f6cf31bf5eb42 100644
--- a/plugin/lsp.vim
+++ b/plugin/lsp.vim
@@ -78,7 +78,7 @@ command! -nargs=0 -bar LspHighlightClear call LspDocHighlightClear()
 command! -nargs=0 -bar LspHover lsp.Hover(<q-mods>)
 command! -nargs=0 -bar LspIncomingCalls lsp.IncomingCalls()
 command! -nargs=0 -bar LspOutgoingCalls lsp.OutgoingCalls()
-command! -nargs=0 -bar LspOutline lsp.Outline()
+command! -nargs=0 -bar LspOutline lsp.Outline(<q-mods>)
 command! -nargs=0 -bar LspPeekDeclaration lsp.GotoDeclaration(v:true, <q-mods>)
 command! -nargs=0 -bar LspPeekDefinition lsp.GotoDefinition(v:true, <q-mods>)
 command! -nargs=0 -bar LspPeekImpl lsp.GotoImplementation(v:true, <q-mods>)
diff --git a/test/clangd_tests.vim b/test/clangd_tests.vim
index 3fb5bbf8469710585af4eb27db1c44aacaa213da..7ede12b797db35663757701162d5992f83f0f14b 100644
--- a/test/clangd_tests.vim
+++ b/test/clangd_tests.vim
@@ -1138,11 +1138,37 @@     }
   END
   setline(1, lines)
   g:WaitForServerFileLoad(0)
+  var winid = win_getid()
   :LspOutline
   assert_equal(2, winnr('$'))
   var bnum = winbufnr(1)
   assert_equal('LSP-Outline', bufname(bnum))
   assert_equal(['Function', '  aFunc', '  bFunc'], getbufline(bnum, 4, '$'))
+
+  # Validate position vert topleft
+  assert_equal(['row', [['leaf', winid + 1], ['leaf', winid]]], winlayout())
+  execute $':{bnum}bw'
+
+  # Validate position vert botright
+  g:LspOptionsSet({ outlineOnRight: true })
+  :LspOutline
+  assert_equal(2, winnr('$'))
+  bnum = winbufnr(2)
+  assert_equal('LSP-Outline', bufname(bnum))
+  assert_equal(['Function', '  aFunc', '  bFunc'], getbufline(bnum, 4, '$'))
+  assert_equal(['row', [['leaf', winid], ['leaf', winid + 2]]], winlayout())
+  g:LspOptionsSet({ outlineOnRight: false })
+  execute $':{bnum}bw'
+
+  # Validate <mods> position botright (below)
+  :botright LspOutline
+  assert_equal(2, winnr('$'))
+  bnum = winbufnr(2)
+  assert_equal('LSP-Outline', bufname(bnum))
+  assert_equal(['Function', '  aFunc', '  bFunc'], getbufline(bnum, 4, '$'))
+  assert_equal(['col', [['leaf', winid], ['leaf', winid + 3]]], winlayout())
+  execute $':{bnum}bw'
+
   :%bw!
 enddef