1. Purpose

Copies the trio of electrical parameters (E_Area zone, E_Wire wire, E_LoadName load name) from one sample element to many targets — one pass for a whole floor instead of opening Properties element by element. Parameters missing on the sample are skipped; per-target failures are reported by id.

2. Quick video (≤ 2 minutes)

[Video in production — follow the steps below for now.]

3. Steps

Click Copy data in the CircuitData pulldown, VP_MEP tab, Electrical panel.
Pick one source element that already carries E_Area/E_Wire/E_LoadName. [image 01: picking the source element]
Keep picking target elements (several in a row). [image 02: picking target elements]
The tool copies the 3 parameters onto each target; failures come back as "Copy completed with issues:" with one line per id. [image 03: per-element issue report]

4. Real-world example

20 floor-4 sockets share one run (E_Area "T4", E_Wire "CV-3x2.5", E_LoadName "T4 sockets") — freshly drawn, no parameters yet. Fill in one sample socket, run the command, pick the source then the 19 others — the whole floor has data in 2 minutes.

5. Common errors

Symptom	Fix
"Source không có dữ liệu để copy." (source has no data)	The source is empty on all 3 parameters — fill the sample first (or use Paste Excel), then rerun
"Element \<id\>: missing parameter ..."	A target lacks that parameter (different family) — add the shared parameter to the family, then rerun
"Element \<id\>: parameter ... is read-only."	A target parameter is locked — check the family, unlock it, then rerun
"Element \<id\>: ... storage type mismatch ..."	Source/target types differ (text vs number) — align the parameter types on both sides, then rerun

6. See also

Paste Excel — assign the 3 parameters from Excel when there is no sample element.
Similar — quickly select same-value elements as copy targets.
Object detection — scan for elements still missing these 3 parameters.