diff --git a/docs/cli_command_availability.md b/docs/cli_command_availability.md
index eeab02b99..f581c6740 100644
--- a/docs/cli_command_availability.md
+++ b/docs/cli_command_availability.md
@@ -173,7 +173,7 @@ should use command `0x42`. See [Companion radio binary protocol](companion_proto
 | Radio | [`get tx`; `set tx <dbm>`](cli_commands.md#view-or-change-this-nodes-transmit-power) | Board TX-power limits apply; busy changes apply automatically | Yes | Yes | Yes |
 | Radio | [`tempradio ...`; `normalradio`](cli_commands.md#change-the-radio-parameters-for-a-set-duration) | Full parser | Yes | Yes | Yes |
 | Radio | [`get/set/del radioat`; `get/set/del tempradioat`](cli_commands.md#schedule-radio-parameter-changes) | Full parser | Yes | Yes | Yes |
-| Radio | [`get preset [n]`; `add preset`; `load preset`; `del preset`](cli_commands.md#save-and-switch-named-radio-presets) | Admin only remotely; remote `load preset` reverts after 10 min unless an admin logs in again; omitted on STM32, ESP-NOW-only and RAK4631 Repeater (`RAK_4631_repeater`, Full sensors) builds (`MESH_ENABLE_RADIO_PRESETS`) | Yes | Yes | Yes |
+| Radio | [`get preset [n]`; `add preset`; `load preset`; `del preset`](cli_commands.md#save-and-switch-named-radio-presets) | Admin only remotely; remote `load preset` reverts after 10 min unless an admin logs in again; omitted on STM32 and ESP-NOW-only builds (`MESH_ENABLE_RADIO_PRESETS`) | Yes | Yes | Yes |
 | Radio | [`get freq`; `set freq <mhz>`](cli_commands.md#view-or-change-this-nodes-frequency) | Local or authorized LoRa CLI | Yes | Yes | Yes |
 | Radio | [`get/set radio.rxgain`](cli_commands.md#view-or-change-this-nodes-rx-boosted-gain-mode-sx12xx-and-lr1110-v1141) | Supported radio | Feature | Feature | Feature |
 | Radio | [`get/set radio.fem.rxgain`](cli_commands.md#view-or-change-the-lora-fem-receive-path-gain-state-on-supported-boards) | Controllable LoRa FEM | Feature | Feature | Feature |
diff --git a/docs/cli_commands.md b/docs/cli_commands.md
index 64c1b9bd5..b63cf961d 100644
--- a/docs/cli_commands.md
+++ b/docs/cli_commands.md
@@ -2209,12 +2209,18 @@ boot.
 **Build switch:** `MESH_ENABLE_RADIO_PRESETS`. Flash-constrained STM32WL builds
 (such as `wio-e5-mini_repeater`) and ESP-NOW-only builds (`MESH_PRIMARY_ESPNOW`
 without a LoRa primary radio) omit radio presets by default; there the preset
-commands return the ordinary unknown-command reply. Two nRF52 images also set
-`MESH_ENABLE_RADIO_PRESETS=0` because they have no room left under their size
-gates: `RAK_4631_companion_radio_full` (flash) and the RAK4631 Repeater built
-from `RAK_4631_repeater`, including its Full sensors + LoRa OTA image (runtime
-RAM). Other builds include them; set `-D MESH_ENABLE_RADIO_PRESETS=0` or `=1`
-to override.
+commands return the ordinary unknown-command reply. `RAK_4631_companion_radio_full`
+also sets `MESH_ENABLE_RADIO_PRESETS=0` because it has no flash left under its
+size gate. Other builds include them; set `-D MESH_ENABLE_RADIO_PRESETS=0` or
+`=1` to override.
+
+**Storage switch:** `MESH_RADIO_PRESETS_RESIDENT`. By default (`1`) the preset
+table stays in RAM. With `0` each preset command reads `/presets` into a
+temporary table, saves any change and drops it; only the revert timer of a
+pending remote `load preset` stays in RAM (at most 40 bytes). Commands, replies
+and the revert behavior are the same. The RAK4631 Repeater built from
+`RAK_4631_repeater` (both its sensor + LoRa OTA images) uses `0` because its
+runtime-RAM headroom is too small for the resident table.
 
 ---
 
diff --git a/variants/rak4631/platformio.ini b/variants/rak4631/platformio.ini
index 4c0d36e6a..dee67069d 100644
--- a/variants/rak4631/platformio.ini
+++ b/variants/rak4631/platformio.ini
@@ -70,9 +70,10 @@ build_flags =
   -D WITH_RS232_BRIDGE_ALT_TX=PIN_SERIAL1_TX
   -D RS232_BRIDGE_MERGED=1
   -D WITH_RS232_BRIDGE_GPS_CONFLICT_UART=1
-  ; Its Full sensors + LoRa OTA image has only 68 bytes of runtime-RAM headroom;
-  ; the resident preset table (~220 B) does not fit, so presets stay out.
-  -D MESH_ENABLE_RADIO_PRESETS=0
+  ; Its Full sensors + LoRa OTA image has only 68 bytes of runtime-RAM headroom,
+  ; too little for the resident preset table (~220 B): presets load /presets per
+  ; command and keep only the revert timer in RAM (<= 40 B).
+  -D MESH_RADIO_PRESETS_RESIDENT=0
 ;  -D OTA_DEBUG=1                        ; bring-up: trace OTA fetch (REQ / block / page-flush) over Serial
 ;  -D MESH_PACKET_LOGGING=1
 ;  -D MESH_DEBUG=1