Pick the game — players, stack, rake — and download the blueprint for your licensed desktop Engine. Every file carries its own configuration; the app shows it before you load it. How blueprints work.
After downloading: In Windows File Explorer, open %LOCALAPPDATA%\PulseGTO\preflop_runs and put the .pgb in its own subfolder (for example preflop_runs\HU20). In the desktop app, open Preflop Settings → Load blueprint, select that folder's blueprint and click Apply blueprint. You do not need a checkpoint or configuration files. File instructions. A PLO blueprint (.plobpz) installs from inside the app instead: see its card.
Ranges for your own stacks, rake and sizes come from the desktop Engine: see the preflop solver and your own strategy database. The 7-day Engine trial is free. An active Engine trial also includes downloads of the published blueprints, so you can try the app with a ready-made database.