Re-simulate button

[anonymous]

Open Omedit
1) Load a model by dragging on OMEdit window. At this point the "re-simulate" button is active.
2) click on re-simulate. You get the message:
"you must first select class to re-simulate"
I think that it is best to leave the re-simulate inactive (greyed) until it is able to re-simulate.

3) double click on the model name to open it. Now several more buttons get coloured.
4) click on re-simulate. You get the message:
"you must first select class to re-simulate"
I think that that button should be either greyed or able to simulate.
In this case the message is wrong.

[Adeel Asghar]

Done in 0fed15a/OMEdit.