@robf355 , Exit Notepad++. Right click, Properties, look for an “unblock” checkbox on c:\Program Files\Notepad++\notepad++.exe, c:\Program Files\Notepad++\plugins\config\nppPluginList.dll, and c:\Program Files\Notepad++\updater\gup.exe, and click the checkbox and Apply / OK. If any of those have the Mark of the Web, then they won’t run properly (usually, for the symptoms you are describing, it will be on the nppPluginList.dll) If that’s not it, then check the Security page of the properties on those, to make sure that Users in general, or at least your user, has Read & Execute permission on those

SmartMath is more than just a calculator. SmartMath natively supports one-dimensional lists/arrays (inspired by SpeQ Mathematics), aggregation functions (inspired by Python: sum, sort, filter and so on), time values (inspired by NumLock Calculator) and complex numbers. Since lists/arrays are natively supported, SmartMath does not need Python’s map function. Instead, it directly calculates such expressions as 100 + (5, 15, 30), sin((pi/4, pi/3, pi/2)) and so on. There is a joke about the C programming language that its creators stopped developing it once C could compile code that no human could understand. Well, here are a few expressions that work in SmartMath: 1e1i++i v = (5-+-1, 1+-+5) v[0]i(33) v[0]%**v[1] upd(a,n,x) = (a[0:n], x, a[n+1:]) g=(): 9.8; g=g() Finally, here are a few examples that looked interesting enough to be included into the “SmartMath,md”: check_index(a,n) = filter(n, t: t>=0 && t<len(a))[0] upd(a,n,x) = check_index(a,n)*0 + (a[0:n], x, a[n+1:]) Do you still think that SmartMath is just a calculator? ;) The latest binaries are available here: 32-bit (x86): https://drive.google.com/file/d/1QNtDeN09VdfpZsfD6dDQ5j8xvcPd-1pO/view?usp=drive_link 64-bit (x64) https://drive.google.com/file/d/1a0In5EZuESV4L4jH_b21fHAfoyAfUiDR/view?usp=drive_link And the online version: https://d0vgan.github.io/AkelPad-Smart-Math/ Have fun!

Thanks for the detailed steps, Coises — that Shift+Right Arrow trick to turn the column selection into a multi-editing selection is the part I had been missing. One alternative that worked well for me in a similar case, when the values are already on separate lines, is to skip the cut step altogether: place a caret at the end of each target line with Ctrl+click (multi-editing), then paste the multi-line text. Notepad++ puts one pasted line at each caret, so the 1 goes after the first ID = and the 2 after the second, with no blank lines left behind. It is a bit fiddly if there are many lines, but for two or three lines it is quicker than converting the selection back and forth. Either way, checking that both multi-editing options are enabled in Settings > Preferences > Editing 2 first, as you said, seems to be the key.