diff --git a/README.md b/README.md
index 1b96a9c..6d4f01f 100644
--- a/README.md
+++ b/README.md
@@ -100,8 +100,31 @@ require("projects"):setup({
         load_after_start = false,
     },
     merge = {
+        event = "projects-merge",
         quit_after_merge = false,
     },
+    event = {
+        save = {
+            enable = true,
+            name = "project-saved",
+        },
+        load = {
+            enable = true,
+            name = "project-loaded",
+        },
+        delete = {
+            enable = true,
+            name = "project-deleted",
+        },
+        delete_all = {
+            enable = true,
+            name = "project-deleted-all",
+        },
+        merge = {
+            enable = true,
+            name = "project-merged",
+        },
+    },
     notify = {
         enable = true,
         title = "Projects",
@@ -140,6 +163,8 @@ The last project is loaded by `load_last` command.
 
 ### `merge`
 
+`event`: the name of event used by merge feature.
+
 `quit_after_merge`: the merged project will be exited after merging.
 
 ### `notify`
diff --git a/main.lua b/main.lua
index 8ccc4ba..a891819 100644
--- a/main.lua
+++ b/main.lua
@@ -556,14 +556,93 @@ local _load_config = ya.sync(function(state, opts)
     end
 
     state.merge = {
+        event = "projects-merge",
         quit_after_merge = false,
     }
     if type(opts.merge) == "table" then
+        if type(opts.merge.event) == "string" then
+            state.merge.event = opts.merge.event
+        end
         if type(opts.merge.quit_after_merge) == "boolean" then
             state.merge.quit_after_merge = opts.merge.quit_after_merge
         end
     end
 
+    state.event = {
+        save = {
+            enable = true,
+            name = "project-saved",
+        },
+        load = {
+            enable = true,
+            name = "project-loaded",
+        },
+        delete = {
+            enable = true,
+            name = "project-deleted",
+        },
+        delete_all = {
+            enable = true,
+            name = "project-deleted-all",
+        },
+        merge = {
+            enable = true,
+            name = "project-merged",
+        },
+    }
+    if type(opts.event) == "table" then
+        if type(opts.event.save) == "table" then
+            if type(opts.event.save.enable) == "boolean" then
+                state.event.save.enable = opts.event.save.enable
+            end
+            if type(opts.event.save.name) == "string" then
+                state.event.save.name = opts.event.save.name
+            end
+        elseif type(opts.event.save) == "boolean" then
+            state.event.save.enable = opts.event.save
+        end
+        if type(opts.event.load) == "table" then
+            if type(opts.event.load.enable) == "boolean" then
+                state.event.load.enable = opts.event.load.enable
+            end
+            if type(opts.event.load.name) == "string" then
+                state.event.load.name = opts.event.load.name
+            end
+        elseif type(opts.event.load) == "boolean" then
+            state.event.load.enable = opts.event.load
+        end
+        if type(opts.event.delete) == "table" then
+            if type(opts.event.delete.enable) == "boolean" then
+                state.event.delete.enable = opts.event.delete.enable
+            end
+            if type(opts.event.delete.name) == "string" then
+                state.event.delete.name = opts.event.delete.name
+            end
+        elseif type(opts.event.delete) == "boolean" then
+            state.event.delete.enable = opts.event.delete
+        end
+        if type(opts.event.delete_all) == "table" then
+            if type(opts.event.delete_all.enable) == "boolean" then
+                state.event.delete_all.enable = opts.event.delete_all.enable
+            end
+            if type(opts.event.delete_all.name) == "string" then
+                state.event.delete_all.name = opts.event.delete_all.name
+            end
+        elseif type(opts.event.delete_all) == "boolean" then
+            state.event.delete_all.enable = opts.event.delete_all
+        end
+        if type(opts.event.merge) == "table" then
+            if type(opts.event.merge.enable) == "boolean" then
+                state.event.merge.enable = opts.event.merge.enable
+            end
+            if type(opts.event.merge.name) == "string" then
+                state.event.merge.name = opts.event.merge.name
+            end
+        elseif type(opts.event.merge) == "boolean" then
+            state.event.merge.enable = opts.event.merge
+        end
+    end
+
     state.notify = {
         enable = true,
         title = "Projects",
@@ -671,6 +750,10 @@ local save_project = ya.sync(function(state, idx, desc)
 
     _save_projects(projects)
 
+    if state.event.save.enable then
+        ps.pub_to(0, state.event.save.name, project)
+    end
+
     if state.notify.enable then
         local message = string.format("Project saved to %s", state.projects.list[real_idx].on)
         _notify(message)
@@ -704,6 +787,10 @@ local load_project = ya.sync(function(state, project, desc)
         _save_projects(projects)
     end
 
+    if state.event.load.enable then
+        ps.pub_to(0, state.event.load.name, project)
+    end
+
     if state.notify.enable then
         local message
         if desc then
@@ -713,8 +800,6 @@ local load_project = ya.sync(function(state, project, desc)
         end
         _notify(message)
     end
-
-    ps.pub_to(0, "project-loaded", project)
 end)
 
 local _load_projects = ya.sync(function(state)
@@ -743,11 +828,16 @@ local _load_projects = ya.sync(function(state)
 end)
 
 local delete_all_projects = ya.sync(function(state)
-    _save_projects(nil)
+    _save_projects(_get_default_projects())
+
+    local msg = "All projects deleted"
+
+    if state.event.delete_all.enable then
+        ps.pub_to(0, state.event.delete_all.name, msg)
+    end
 
     if state.notify.enable then
-        local message = "All projects deleted"
-        _notify(message)
+        _notify(msg)
     end
 end)
 
@@ -756,9 +846,14 @@ local delete_project = ya.sync(function(state, idx)
 
     local message = string.format([["%s" deleted]], tostring(projects.list[idx].desc))
 
+    local deleted_project = projects.list[idx]
     table.remove(projects.list, idx)
     _save_projects(projects)
 
+    if state.event.delete.enable then
+        ps.pub_to(0, state.event.delete.name, deleted_project)
+    end
+
     if state.notify.enable then
         _notify(message)
     end
@@ -776,7 +871,11 @@ end)
 local merge_project = ya.sync(function(state, opt)
     local project = _get_current_project()
     project.opt = opt or "all"
-    ps.pub_to(0, "projects-merge", project)
+    ps.pub_to(0, state.merge.event, project)
+
+    if state.event.merge.enable then
+        ps.pub_to(0, state.event.merge.name, project)
+    end
 
     if state.merge.quit_after_merge then
         ya.emit("quit", {})
@@ -788,7 +887,7 @@ local _merge_tab = ya.sync(function(state, tab)
 end)
 
 local _merge_event = ya.sync(function(state)
-    ps.sub_remote("projects-merge", function(body)
+    ps.sub_remote(state.merge.event, function(body)
         if body then
             local active_idx = tonumber(cx.tabs.idx)