# Cival Auction Structure — Step-by-step tutorial

Release 1.0.0-atas.

## 1. Install and load

Close ATAS, run .\ATAS\Install.ps1, start ATAS and add Cival Auction Structure to a chart with several days of footprint history on a timeframe of 30 minutes or less. The panel title reads Cival Auction Structure — developing and a histogram appears on the right edge.

## 2. Check the session clock

Leave Session start at 0 and Session timezone blank for a midnight cut on the chart's clock, or set them to match your market. Reload the chart if you change them and watch the date in the level labels.

## 3. Show the whole panel

Untick Compact panel (title + two lines). Eight lines appear. The last two should read Visited prices from real footprint rows and Bracket counts; not volume counts. APPROXIMATE, COARSE or PARTIAL means the profile is an estimate.

## 4. Read the developing profile

Line 2 gives the time value center (TPOC) and value area; line 3 the shape candidate and number of single-print rows; line 5 the low and high edge candidates. Gold histogram rows were visited by one bracket only.

## 5. Read the prior-session lines

From the second session on, three lines labelled with the earlier date appear: time value center, time value low and time value high. They begin at the new session's first bar. Compare the open with them.

## 6. Read failed-auction marks

A ▼ FA prior TPO high or ▲ FA prior TPO low sits on a closed bar that moved beyond the previous profile's extreme row and closed back inside. Count how many appear at the same extreme before judging one.

## 7. Change the grid and compare

Change TPO row size (ticks) or TPO bracket minutes and note how the TPOC, value area and Effective row change. Export CSV files if you want to keep the marks and levels.