Raster calculations are done in custom scripts. You can access custom scripts in Configuration Utility, in each layer under each configuration.
To edit the script, click on the “pencil icon” aside the Data processing option under a selected layer and enter the Custom Script Editor.
See more details here.
How to use the script is detailed here.
An example of the NDVI script below and visualized in EO Browser.
// NDVI calculation
let ndvi = (B08 - B04) / (B08 + B04)
return [ndvi]
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