Here You can download the distribution for your version of ARCHICAD.

Distribution ARCHICAD vertion Lang    Downloaded Updated
LabPP_CalcT_AC16_x32_INT v16 win x32 int Download 1563   04/02/18
LabPP_CalcT_AC16_x32_RUS v16 win x32 rus Download 1772   04/02/18
LabPP_CalcT_AC16_x64_INT v16 win x64 int Download 1112   04/02/18
LabPP_CalcT_AC16_x64_RUS v16 win x64 rus Download 1872   04/02/18
LabPP_CalcT_AC17_x64_INT v17 win x64 int Download 1499   04/02/18
LabPP_CalcT_AC17_x64_RUS v17 win x64 rus Download 1441   04/02/18
LabPP_CalcT_AC18_x64_INT v18 win x64 int Download 1067   04/02/18
LabPP_CalcT_AC18_x64_RUS v18 win x64 rus Download 1970   04/02/18
LabPP_CalcT_AC18_Mac_RUS v18 Mac OS rus Download 528   12/09/16
LabPP_CalcT_AC19_x64_INT v19 win x64 int Download 629   04/02/18
LabPP_CalcT_AC19_x64_RUS v19 win x64 rus Download 924   04/02/18
LabPP_CalcT_AC20_x64_INT v20 win x64 int Download 371   04/02/18
LabPP_CalcT_AC20_x64_RUS v20 win x64 rus Download 593   04/02/18
LabPP_CalcT_AC21_x64_INT v21 win x64 int Download 207 08/23/18
LabPP_CalcT_AC21_x64_RUS v21 win x64 rus Download 355 08/23/18
LabPP_CalcT_AC22_x64_INT v22 win x64 int Download 37 08/23/18
LabPP_CalcT_AC22_x64_RUS v22 win x64 rus Download 61 08/23/18

If You have a troubles, guide how install add-ons read there.
All distributions equipped with temporary (demo) keys. So You can work in full mode.