In ArcGIS Pro, create a new template map,

Rename it, "Spatial data analysis" and for location, click the GST 313 folder and then click "OK"

Click "View" and "Catalog Pane"

Then, right click "Folders" and add folder connection

Find and select GST 313 folder.

Inside GST 313 folder, click the vector folder.

Rename all it such as :

Malaysia_district,

Malaysia_road,

Malaysia_state,

Malaysia_peninsular

Select of all that, drag it towards the map and drop it. Do the same for both vector and raster data.

Click View, Catalog Pane and right click folder Spatial_Analysis

Click New, and File and then Geodatabase

Rename it to Asia

Right click Asia, click new, click feature dataset.

For feature dataset, rename it to Malaysia

For coordinate system, click Kertau RSO Malaya Meters and then run.

Click Analysis, Tools, Toolboxes

Types Project and click it

In Input Dataset, click Malaysia_road.

In Output Dataset, browse and click vector, rename it to MYR_RoadRSO

In Output Coordinate System, browse and find Kertau(meters).

Save and do for all vector layer

Right click map and create new group layer.

Rename it to MYR_WGS1984, which is Raster and Vector

Click View, Catalog Pane, in ASIA, right click Malaysia, click import and feature classes.

Input all RSO feature layers and run.

Click Edit, Snapping, Create and click Boundary.

Digitize the Boundary Area.

Drag the raster data above boundary

Click Split and split both area.

Drag down the raster data back.

Click Analysis, Tools, Mosaic to New Raster.

For Input Raster, select all raster layer

In Output Location, find and click folder raster

For raster dataset name, rename it to Afiq_merge

In spatial reference set to WGS 1984

For pixel type, click 1 bit

For cell size, in contents, right click any raster data, properties, source, raster information, and copy cell size and paste it.

Number of bands, 1

Click Run.