Is there any way to mark the task as on-track? Rather than guessing how much percentage it is complete to show on the Gantt chart as on schedule.
Similar feature exist in MS Project. Any tasks could be marked: on-track and software automatically adjust percentage complete to demonstrate that task is on schedule on Gantt chart.
While it is a bit fiddly to set up, it is actually possible to do something like this using a combination the Extended Properties function of the MAP MindManager add-in and the MM Formula and Conditional Formatting features.
Without getting too detailed, the first step is to use the MAP Extended Properties facility to convert task values for a specific topic such Progress, Days to Task Due (and/or Task Days Elapsed) into custom properties for the topic (for a very brief introduction to the Custom Property see this post by Nigel Goult from Olympic Ltd, the retailer of MAP: https://community.mindjet.com/mindjet/topics/task-duration-in-a-formula).These properties will update to reflect changes in the task information.
Then you can use MM's Formula feature, for example to compare progress (as a fraction of completion) relative to days elapsed (as a fraction of total duration) which will be shown in a new calculated custom property.
Depending which way around you do this, if say the task is 40% completed and four days have elapsed out of a total task duration of 10 work days, then I assume the task is on track and the value of this new field will be one. If the task is 50% completed it's ahead of schedule and the value of this field would be 1.25, and of course if it's only 20% completed it's behind and its value would be 0.5.
This is where the new Conditional Formatting feature comes in. You can use this to set rules to show topics that are tracking on time (ie, when the calculated custom field equals one) with a particular fill colour (or other formatting effect), while those that are ahead of schedule (ie, with a value over one) have a different colour and of course those that are behind schedule (ie, with a value under one) could be given a specific warning colour (each of these would require a separate rule)
I don't use topic properties very much but I thought they might have potential to be useful in this sort of situation. So far I've tried this technique with only one test topic but it seems to work. I assume you could save a topic with the custom properties and the formulae as a reusable map part, or use the MAP Property Clipboard to copy the properties and formulae from one topic to another.