The tile grid
The tile grid is the core of RDPMaster. Open multiple sessions, they auto-arrange into a grid where every tile is visible and clickable at once.
Layout math
Section titled “Layout math”RDPMaster picks rows and columns to keep tiles as close to a 16:9 ratio as your window aspect allows. The pattern for N active sessions:
| Sessions | Grid (cols × rows) |
|---|---|
| 1 | 1 × 1 (full window) |
| 2 | 2 × 1 |
| 3 | 3 × 1 |
| 4 | 2 × 2 |
| 5–6 | 3 × 2 |
| 7–9 | 3 × 3 |
| 10–12 | 4 × 3 |
| 13–16 | 4 × 4 |
If you connect a 17th session, RDPMaster shows a friendly error explaining the cap. (The cap is a deliberate UX choice — at 4×4 tiles, you’re already looking at 16 sessions in roughly the same area as a single fullscreen window. Beyond that, the per-tile pixels get unreadable.)
Interacting with a tile
Section titled “Interacting with a tile”- Click anywhere in the tile to give it keyboard + mouse focus. The remote machine sees your input.
- Click the tile header to focus without sending a click into the session.
- The focused tile gets a 1px accent border. Other tiles render dimmed until you interact with them.
Tile header controls
Section titled “Tile header controls”Every tile has a header bar with:
- Display name (what you set in the profile editor)
- Status pill — Connecting / Connected / Reconnecting / Disconnected, color-coded
- Latency in ms, sampled every 2s when connected (helpful for diagnosing slow sessions)
- ⛶ (expand) button — make this tile take the whole window. Click ⮌ (shrink) or press Esc to return.
- Three-dot menu — Disconnect, Reconnect, Toggle recording, Copy ratecard line, Edit profile.
You can hide the tile headers entirely for a denser layout: Settings → Tile header → On hover only / Always hidden.
Reordering tiles
Section titled “Reordering tiles”Drag-to-reorder works on the sidebar. The grid follows the sidebar order: the topmost profile in the sidebar becomes the top-left tile.
Multi-monitor when expanded
Section titled “Multi-monitor when expanded”When a tile is expanded to full-window, RDPMaster can also span multiple physical monitors if the Use multiple monitors when expanded option is enabled in the profile. The remote machine sees one large multi-mon display. Press Esc or click ⮌ to collapse back to the tile grid on a single monitor.
Auto-resolution
Section titled “Auto-resolution”Each tile sends a desktop resolution to the remote server matching the tile’s current pixel size. When you expand the tile, RDPMaster re-negotiates the remote display to the full-window size; on shrink, it re-negotiates back. This is the Auto-resolution option on the profile (default on) — uncheck it if you want to lock the remote to a fixed resolution regardless of tile size.