Clear automation on unused areas.

Cool I did it. I decided to try writing a script to do this.

I start with a selection, with the waveform visible, as well as the automation line I want to change. I am unsure about writing a particular value, but I was able to make it flat!

// housekeeping
sf.ui.proTools.appActivateMainWindow();
sf.ui.proTools.mainWindow.invalidate();

//get endpoint of selection
const endTotalSelection = sf.ui.proTools.selectionGetInSamples().selectionEnd;

// put cursor at start of selection, make first sub-selection
sf.keyboard.press({ keys: "down, shift+tab", });

// loop for selection of empty space and writing flat line of automation based on first value of empty space
let endCurrentSelection = sf.ui.proTools.selectionGetInSamples().selectionEnd;

while (endCurrentSelection < endTotalSelection) {
if (sf.ui.proTools.selectionGetInfo().isPureEmptySpace) {
    sf.ui.proTools.menuClick({ 
        menuPath: ["Edit","Automation","Write to Current"],})
    sf.keyboard.press({ 
        keys: "up, shift+tab",})
    endCurrentSelection = sf.ui.proTools.selectionGetInSamples().selectionEnd;
} else {sf.keyboard.press({ 
        keys: "up, shift+tab",});
    endCurrentSelection = sf.ui.proTools.selectionGetInSamples().selectionEnd;
}};

I refactored the script. I also wanted to point out to @Kitch that his tips directly helped me to solve my issues with declaring functions with arrows, that is, once I used ChatGPT to tell me to use more parentheses in my methods! Haha

/* Script for looping through the clips and empty regioins on a timeline selection, 
and where there is empty space, to write a flat line of automation based on the value
of the automated paramater at the onset of the empty space.
*/

// housekeeping
sf.ui.proTools.appActivateMainWindow();
sf.ui.proTools.mainWindow.invalidate();

// declare variables and functions
const endOfInitialSelection = sf.ui.proTools.selectionGetInSamples().selectionEnd;
log("end of initial selection = " + endOfInitialSelection);
let getEndOfCurrentSelection = () => {
    return sf.ui.proTools.selectionGetInSamples().selectionEnd;
};
let endOfCurrentSelection;
const isEmptySpaceWithoutClips = () => {
    return sf.ui.proTools.selectionGetInfo().isPureEmptySpace;
};
const automateWriteToCurrent = () => {
    sf.ui.proTools.menuClick({ 
        menuPath: ["Edit","Automation","Write to Current"],
    });
};
const selectNextRegion = () => {
    sf.keyboard.press({ 
        keys: "up, shift+tab",
    });
};

// put cursor at start of selection, make first sub-selection
sf.keyboard.press({ keys: "down, shift+tab", });
endOfCurrentSelection = getEndOfCurrentSelection();
log("current end of selection = " + endOfCurrentSelection);

// begin loop to write automation after checking if a region has no clips
while (endOfCurrentSelection < endOfInitialSelection) {

// assess whether selected region is empty before doing action
if (isEmptySpaceWithoutClips()) {
    log(isEmptySpaceWithoutClips());
    automateWriteToCurrent();
    selectNextRegion();
    endOfCurrentSelection = getEndOfCurrentSelection();
    log("current end of selection = " + endOfCurrentSelection);
} else {
    selectNextRegion();
    endOfCurrentSelection = getEndOfCurrentSelection();
}};