diff --git a/Configurations.md b/Configurations.md
index 7a77dbe154b..13826883d2f 100644
--- a/Configurations.md
+++ b/Configurations.md
@@ -2062,7 +2062,7 @@ use sit;
 Controls the strategy for how imports are grouped together.
 
 - **Default value**: `Preserve`
-- **Possible values**: `Preserve`, `StdExternalCrate`
+- **Possible values**: `Preserve`, `StdExternalCrate`, `One`
 - **Stable**: No
 
 #### `Preserve` (default):
@@ -2108,6 +2108,23 @@ use super::update::convert_publish_payload;
 use crate::models::Event;
 ```
 
+#### `One`:
+
+Discard existing import groups, and create a single group for everything
+
+```rust
+use super::schema::{Context, Payload};
+use super::update::convert_publish_payload;
+use crate::models::Event;
+use alloc::alloc::Layout;
+use broker::database::PooledConnection;
+use chrono::Utc;
+use core::f32;
+use juniper::{FieldError, FieldResult};
+use std::sync::Arc;
+use uuid::Uuid;
+```
+
 ## `reorder_modules`
 
 Reorder `mod` declarations alphabetically in group.
diff --git a/src/config/options.rs b/src/config/options.rs
index e92f8e8a531..a17d48349c0 100644
--- a/src/config/options.rs
+++ b/src/config/options.rs
@@ -112,6 +112,8 @@ pub enum GroupImportsTactic {
     ///  2. other imports
     ///  3. `self` / `crate` / `super` imports
     StdExternalCrate,
+    /// Discard existing groups, and create a single group for everything
+    One,
 }
 
 #[config_type]
diff --git a/src/reorder.rs b/src/reorder.rs
index 2c58350d4fe..0732c8ee700 100644
--- a/src/reorder.rs
+++ b/src/reorder.rs
@@ -118,7 +118,9 @@ fn rewrite_reorderable_or_regroupable_items(
             };
 
             let mut regrouped_items = match context.config.group_imports() {
-                GroupImportsTactic::Preserve => vec![normalized_items],
+                GroupImportsTactic::Preserve | GroupImportsTactic::One => {
+                    vec![normalized_items]
+                }
                 GroupImportsTactic::StdExternalCrate => group_imports(normalized_items),
             };
 
diff --git a/tests/source/configs/group_imports/One-merge_imports.rs b/tests/source/configs/group_imports/One-merge_imports.rs
new file mode 100644
index 00000000000..157d3857908
--- /dev/null
+++ b/tests/source/configs/group_imports/One-merge_imports.rs
@@ -0,0 +1,17 @@
+// rustfmt-group_imports: One
+// rustfmt-imports_granularity: Crate
+use chrono::Utc;
+use super::update::convert_publish_payload;
+
+use juniper::{FieldError, FieldResult};
+use uuid::Uuid;
+use alloc::alloc::Layout;
+
+use std::sync::Arc;
+use alloc::vec::Vec;
+
+use broker::database::PooledConnection;
+
+use super::schema::{Context, Payload};
+use core::f32;
+use crate::models::Event;
diff --git a/tests/source/configs/group_imports/One-nested.rs b/tests/source/configs/group_imports/One-nested.rs
new file mode 100644
index 00000000000..109bd07e1ee
--- /dev/null
+++ b/tests/source/configs/group_imports/One-nested.rs
@@ -0,0 +1,7 @@
+// rustfmt-group_imports: One
+mod test {
+    use crate::foo::bar;
+
+    use std::path;
+    use crate::foo::bar2;
+}
diff --git a/tests/source/configs/group_imports/One-no_reorder.rs b/tests/source/configs/group_imports/One-no_reorder.rs
new file mode 100644
index 00000000000..f82f62c7f5b
--- /dev/null
+++ b/tests/source/configs/group_imports/One-no_reorder.rs
@@ -0,0 +1,16 @@
+// rustfmt-group_imports: One
+// rustfmt-reorder_imports: false
+use chrono::Utc;
+use super::update::convert_publish_payload;
+
+use juniper::{FieldError, FieldResult};
+use uuid::Uuid;
+use alloc::alloc::Layout;
+
+use std::sync::Arc;
+
+use broker::database::PooledConnection;
+
+use super::schema::{Context, Payload};
+use core::f32;
+use crate::models::Event;
diff --git a/tests/source/configs/group_imports/One.rs b/tests/source/configs/group_imports/One.rs
new file mode 100644
index 00000000000..5ab7a950805
--- /dev/null
+++ b/tests/source/configs/group_imports/One.rs
@@ -0,0 +1,15 @@
+// rustfmt-group_imports: One
+use chrono::Utc;
+use super::update::convert_publish_payload;
+
+use juniper::{FieldError, FieldResult};
+use uuid::Uuid;
+use alloc::alloc::Layout;
+
+use std::sync::Arc;
+
+use broker::database::PooledConnection;
+
+use super::schema::{Context, Payload};
+use core::f32;
+use crate::models::Event;
diff --git a/tests/target/configs/group_imports/One-merge_imports.rs b/tests/target/configs/group_imports/One-merge_imports.rs
new file mode 100644
index 00000000000..52e0e1c5ac2
--- /dev/null
+++ b/tests/target/configs/group_imports/One-merge_imports.rs
@@ -0,0 +1,14 @@
+// rustfmt-group_imports: One
+// rustfmt-imports_granularity: Crate
+use super::{
+    schema::{Context, Payload},
+    update::convert_publish_payload,
+};
+use crate::models::Event;
+use alloc::{alloc::Layout, vec::Vec};
+use broker::database::PooledConnection;
+use chrono::Utc;
+use core::f32;
+use juniper::{FieldError, FieldResult};
+use std::sync::Arc;
+use uuid::Uuid;
diff --git a/tests/target/configs/group_imports/One-nested.rs b/tests/target/configs/group_imports/One-nested.rs
new file mode 100644
index 00000000000..5b648548260
--- /dev/null
+++ b/tests/target/configs/group_imports/One-nested.rs
@@ -0,0 +1,6 @@
+// rustfmt-group_imports: One
+mod test {
+    use crate::foo::bar;
+    use crate::foo::bar2;
+    use std::path;
+}
diff --git a/tests/target/configs/group_imports/One-no_reorder.rs b/tests/target/configs/group_imports/One-no_reorder.rs
new file mode 100644
index 00000000000..015e841d014
--- /dev/null
+++ b/tests/target/configs/group_imports/One-no_reorder.rs
@@ -0,0 +1,12 @@
+// rustfmt-group_imports: One
+// rustfmt-reorder_imports: false
+use chrono::Utc;
+use super::update::convert_publish_payload;
+use juniper::{FieldError, FieldResult};
+use uuid::Uuid;
+use alloc::alloc::Layout;
+use std::sync::Arc;
+use broker::database::PooledConnection;
+use super::schema::{Context, Payload};
+use core::f32;
+use crate::models::Event;
diff --git a/tests/target/configs/group_imports/One.rs b/tests/target/configs/group_imports/One.rs
new file mode 100644
index 00000000000..3094c7ae115
--- /dev/null
+++ b/tests/target/configs/group_imports/One.rs
@@ -0,0 +1,11 @@
+// rustfmt-group_imports: One
+use super::schema::{Context, Payload};
+use super::update::convert_publish_payload;
+use crate::models::Event;
+use alloc::alloc::Layout;
+use broker::database::PooledConnection;
+use chrono::Utc;
+use core::f32;
+use juniper::{FieldError, FieldResult};
+use std::sync::Arc;
+use uuid::Uuid;