FEATURE REQUEST: Choose Task Manager

[K0ntrast]

Is there a way to choose which task manager to make multiload-ng launch by default (rather than lxtask) when right clicking on the multiload-ng graphs in the system tray? Other than modifying source code and recompiling, of course.

Steps which explain the enhancement

1. Allow user to select a predefined task manager from a drop down or define a custom command to access task manager (see figure 2)
2. Option is stored in multiload-ng config file
3. When the "start task manager" menu item is selected from the context menu, multiload-ng will load that specific task manager. (see figure 1)

Current and suggested behaviour

Currently, only LXTask launches with this function. It would be good to choose what multiload-ng does rather than only launching lxtask.
i.e. htop, lxtask, xfce4-task, gnome/mate system monitor, ksysguard, sysmontask, etc.

Why would the enhancement be useful to most users

Allows users to choose their preferred task manager to launch.

Screenshots and GIFs

Figure 1: Context Menu

Figure 2: Options Dialog

Multiload-ng Version: 1.5.2, built from source.
OS and Version: Debian 10 [amd64]