If all you want to do is change the variable, click on Manage Conditions, and edit the condition used in the IF-THEN action.
It is also possible to edit the expression in the IF-THEN, but that is a bit more involved. You'd click on the IF-THEN action in the table, and that would bring up something like this:
For other battling with the cumbersome Rule machine editing:
I found that I need first to make a new Local variable. Then the IF-THEN action will update. other line can then be edited by choosing the new variable.
You are right but if I do not first make a new local variable, I cannot change it the way you described; select the new variable. I can't change the name of the variable in "manage or create conditions"?
It's worth it to be aware that an expression, for IF-THEN or anywhere else, consists of conditions and the logic operators (if any). Each condition can be edited on its own. Usually that's what you want to do, not to change the logical construction of the IF-THEN expression itself (although this is possible).
Any variable you are going to use has to already exist before you can select it. Does your variable that you want to change to already exist? If so, it should be in the pull down menu of available variables.
Depends on how it's broken. If you can edit the condition to fix it, then you don't have to touch the IF-THEN. If not, you'd need a new condition and to edit the IF-THEN to use it.
I find it somewhat ironic that as the world struggles with rising sea levels, you guys have dealt with it for centuries. Question is, is the protection high enough for yet higher sea levels?
Our government does not know yet... "They are looking into it" But if extremely rich people build hugely expensive mansions on the sea shores and the Maldives are still not under water, I guess that they will have plenty time to work out a solution.
We are situated at the North Sea, which was dry land(!) in the past so maybe the level will drop later on? Time will tell...
The Netherlands still uses much of the same technology borrowed from New Orleans, where the Wood Screw Pump was first developed around 1900. I had the honor of working with a team of Dutch engineers from Royal Haskoning for several years after Hurricane Katrina, to rebuild parts of the New Orleans flood protection system. Never met a nicer, more intelligent bunch of men and women.
Trivia: The city's pumping stations could siphon the entire Ohio River dry, such is their total capacity.