In ArcGIS pro, create a new blank template map.

Rename it, "Spatial data analysis" and for location, click the GST313 folder and click "OK"

Click "View" and click "Catalog Pane"

Then, right-click "Folders" and add folder connection.

Find and select GST313 folder.

Inside GST313 folder, click the vector folder.

Rename all the Malaysia_district, Malaysia_road, Malaysia_state and Malaysia_peninsular.

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

Right click map and create new group layer.

Rename it to MYR_WGS1984, which is Raster and Vector.

Click Analysis, Tools, Toolboxes.

Typed Project and click.

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.

Click View, Catalog Pane and right-click folder spatial_data_analysis.

Click New, and File 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 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 second raster data above boundary.

Click split and split both area.

Drag down the second 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 hariss_merge

In spatial reference, WGS1984.

For pixel type, click 1 bit.

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

Number of bands, 1.

Click run