RKCadTools P&ID Linker sample - fictional cooling water skid

QUICK DEMO
Choose "Try a sample list and drawing" in P&ID Linker. The tool loads the
enclosed component list and drawing, detects the header row and the tag
column, and builds the linked PDF. Clear session starts fresh.

TRY THE FILES YOURSELF
1. Component list: sample-component-list.xlsx. Worksheet: Components.
2. P&ID drawing: sample-cooling-water-pid.pdf (two sheets).
3. The header is detected on row 5, below a three-row title block.
   The tags are in column D, "Tag", with 3 parts separated by hyphens,
   for example 210-PV-201.
4. Keep the suggested columns and choose Build linked PDF.

EXPECTED RESULT
15 tags in the list: 14 linked and 1 not found. 15 drawing tags link back
to the list. 1 list page comes first, followed by the 2 drawing pages.
- 210-PV-202 appears on both sheets; the P&ID page column links to both.
- 220-HV-099 is a future valve deliberately absent from the drawing.
- 210-PT-402 is on the drawing but missing from the list, so it is
  reported as "P&ID only".
- Sheet 2 is stored rotated, as many CAD exports are. Links still land on
  the tag.

Open the linked PDF, click a blue tag in the list to jump to the drawing,
then click the tag on the drawing to jump back to its row.

DRAWING ANNOTATIONS
The quick demo also sets step 04, Drawing annotations, from the Status
column (column H):
- Colour rules: Approved green, Review amber, Hold red with the label text
  HOLD, Future grey. The last matching rule wins. The highlights on the
  drawing take the rule colour; the list keeps blue for linked tags.
- Labels: "Only tags that match a colour rule" and "Use the rule colour",
  with a frame. The Review rule has the label text REVIEW, so 5 labels
  appear: REVIEW beside 210-P-101, 210-P-102 and 220-HX-001,
  and HOLD beside 210-PV-202 on both sheets. Labels print; rings do not.
- Popup note: chosen columns Description, Type, DN and Status, after the
  tag and before the list row. Hover a drawing tag in the viewer to read it.
To try it by hand: in step 04 add a rule "Column H - Status" equals Hold
with a red colour and the label text HOLD, tick "Show a label beside each
linked tag", and build again.

All data and the drawing are fictional, made only for demonstration and
not for construction. No real project or customer information is included.
