docs:Adding preview targets in the IDE (#1237)

Author: kolipakakondal

docs/en/additionalfeatures/configuretoolchain.rst

@@ -0,0 +1,57 @@
+How to Add a Preview or Custom ESP-IDF Target in the IDE (Manual Configuration)
+===============================================================================
+
+To add support for any preview or custom ESP-IDF target (such as ESP32-C5 or others not listed by default in the IDE), follow these steps:
+
+Step 1: Configure Toolchain
+---------------------------
+1. Go to Preferences → C/C++ → Core Build Toolchain.
+2. Under User Defined Toolchain, click on Add….
+3. Select GCC and configure as follows:
+   - **Compiler:** (Path to the toolchain compiler for your target, e.g. `/Users/testuser/.espressif/tools/riscv32-esp-elf/esp-14.2.0_20241119/riscv32-esp-elf/bin/riscv32-esp-elf-gcc`)
+   - **Operating System:** (e.g. `esp32c5` for ESP32-C5)
+   - **CPU Arch:** (e.g. `riscv32` for ESP32-C5)
+4. Click Finish.
+
+.. image:: ../../../media/toolchain/toolchain_1.png
+   :alt: Core Build Toolchains Preferences (Add Custom Target)
+
+*Core Build Toolchains Preferences: Adding a custom/preview target toolchain (example: ESP32-C5)*
+
+Step 2: Configure CMake Toolchain
+---------------------------------
+1. Navigate to Preferences → C/C++ → CMake.
+2. Click on Add….
+3. Browse and select the CMake toolchain file for your target (e.g. `toolchain-esp32c5.cmake`).
+4. Choose the corresponding toolchain entry created in Step 1.
+5. Click Finish.
+
+.. image:: ../../../media/toolchain/toolchain_2.png
+   :alt: CMake Toolchain Preferences (Add Custom Target)
+
+*CMake Toolchain Preferences: Adding a custom/preview target toolchain file (example: ESP32-C5)*
+
+Step 3: Add Launch Target
+-------------------------
+1. From the IDE's top toolbar target list, click on New Launch Target.
+2. Select ESP Target.
+3. Provide the following details:
+   - **Name:** (e.g. `esp32c5`)
+   - **IDF Target:** (e.g. `esp32c5`)
+4. Click Finish.
+
+.. image:: ../../../media/toolchain/toolchain_3.png
+   :alt: New ESP Target Dialog (Custom Target Example)
+
+*New ESP Target Dialog: Creating a launch target for a custom/preview target (example: ESP32-C5)*
+
+Step 4: Build a Project
+-----------------------
+- Create or open a project.
+- Select your custom/preview target from the target list.
+- Build the project.
+
+.. image:: ../../../media/toolchain/toolchain_4.png
+   :alt: Build Output for Custom Target Project
+
+*Build Output: Successfully building a project for a custom/preview target (example: ESP32-C5)*

docs/en/buildproject.rst

@@ -40,4 +40,6 @@ References
 .. toctree::
     :maxdepth: 1
 
-      Configure CDT Build Environment Variables<additionalfeatures/configureenvvariables>
+    Configure CDT Build Environment Variables <additionalfeatures/configureenvvariables>
+    Add a Preview or Custom ESP-IDF Target <additionalfeatures/configuretoolchain>
+