KerbalEngineer VS Kerbalism

Kerbal Engineer Redux

Try using kerbal engineer (download page) and tap the 'landing' node, it will show the suïcide burn countdown. When it hits 0 start your landing burn. That makes it so much easier 😎

https://github.com/jrbudda/KerbalEngineer/issues/85 This is the same issue, so I guess at least it's known!

For quality of life: Kerbal Alarm Clock for timing multiple missions or transfer windows, and Kerbal Engineer and/or MechJeb for various design and flight information.

I also recommend installing the mod Kerbal Engineer Redux which will automatically calculate delta v as well as other information and display it for u in the VAB.

As far as mods go I highly recommend Kerbal Engineer Redux which gives you access to more (customizable) data on screen. If you want more recommendations for mods let me know.

Here is link number 1 - Previous text "KER"

To your UI question: I believe this is Kerbal Engineer Redux’s heads up display.

My advice is: download and install KER

There's a known bug where that option doesn't work. But you can disable the notifications for each vessel you launch. https://github.com/Kerbalism/Kerbalism/issues/812

If you want to change up how science works, I'll recommend Kerbalism. Makes it so experiments complete over time, some within minutes and others can take years. It also adds life support mechanics, radiation, and some other stuff.

My all time favorite is Kerbalism. It doesn't make it easier, but I think it makes it more interesting/fun, especially for manned missions. It reworks the science system, and has good life support and ISRU options.

+) someone opened an issue on the GitHub page but his problem isn't the same as mine https://github.com/Kerbalism/Kerbalism/issues/823

For career mode: Kerbalism. Reworked science system that makes it much more interesting, and good life support and ISRU options.

In terms of remaining mostly stock, I'd recommend Kerbalism and Contract Configurator with a few contract packs (second comment has a list) that fit your playstyle.

Install Kerbalism for food/oxygen/radiation/etc.

Adds things such as radiation, and more notably, needs for your kerbals. They need food, water, and air. That and more.