Field notes
After 16:35 every wick looks like a level you meant to use. The pen becomes generous. Support that was invisible at 10:00 acquires a circle, a label, and a sense of destiny. This is still called technical analysis in too many journals. It is hindsight with a ruler.
The house rule at Storage Mapcore is simple enough to keep: after the close you may mark only what was in the plan, plus one observation labelled as after-the-fact. The observation may not be used to justify a trade that already happened. It may be used to ask whether tomorrow’s plan should include it. That is a different job.
What the pen is for
In the sitting we put the pre-market page next to the marked close. If a line appears only on the later page, it is decoration unless the trader can point to a timestamp where they used it live. Confluence invented at the kitchen table does not become confluence by surviving overnight.
Traders who love drawing will find this stingy. Good. A journal that is allowed unlimited post-session art will never be reread, because rereading would expose the art. Keep the extra line if you must, but tag it. The tag is the habit.