diff --git a/Sources/AppBundle/command/other/format.swift b/Sources/AppBundle/command/other/format.swift
index 791e744c..644c18d7 100644
--- a/Sources/AppBundle/command/other/format.swift
+++ b/Sources/AppBundle/command/other/format.swift
@@ -95,7 +95,7 @@ private extension String {
             case (.window(_), .window): break
 
             case (.workspace(let ws), .monitor):
-                return ws.nodeMonitor.flatMap(AeroObj.monitor).map(expandFormatVar) ?? .success("NULL-MONITOR")
+                return expandFormatVar(obj: AeroObj.monitor(ws.workspaceMonitor))
             case (.workspace, _): break
 
             case (.app(_), _): break
diff --git a/docs/guide.adoc b/docs/guide.adoc
index 78e9d8b0..a99968bf 100644
--- a/docs/guide.adoc
+++ b/docs/guide.adoc
@@ -488,9 +488,9 @@ You can track focus changes using the following callbacks: `on-focus-changed` an
 A common use case for the callbacks is to implement "mouse follows focus" behavior. All you need is to combine the callback of your choice with xref:commands.adoc#move-mouse[move-mouse command]:
 [source,toml]
 ----
-on-focused-monitor-changed = ['move-mouse monitor-lazy-center']
+on-focused-monitor-changed = ['move-mouse monitor-lazy-center'] # Mouse lazily follows focused monitor (default in i3)
 # or
-on-focus-changed = ['move-mouse window-lazy-center']
+on-focus-changed = ['move-mouse window-lazy-center'] # Mouse lazily follows any focus (window or workspace)
 ----
 
 You shouldn't rely on the order callback are called, since it's an implementation detail and can change from version to version.
diff --git a/docs/util/app-inter-variables.adoc b/docs/util/app-inter-variables.adoc
deleted file mode 100644
index e69de29b..00000000