how do you place the same transition between all clips

Adding to Jim's post, you can do an Edit/Select All, and an Edit/Add Cross Dissolve, and that will add cross dissolves throughout your project, or between the clips in whatever region in the timeline that you have selected.

If you want to insert a transition different than cross-dissolve throughout the project, choose the transition you want, place it between the first two clips in the timeline, select it, do an Edit/Copy of the transition, then select all the clips in the project or a batch of adjoining clips, then do an Edit/Paste, and the selected transition will be inserted throughout the project or in the batch of adjoining clips that you selected.

-- Rich

After Edit/Copy of the inserted transition, you then have to select the range of clips between which you want to replicate the initial inserted transition. I have found that Edit/Select All does not work and will leave the Edit/Paste still grayed out. Instead, select the first clip, then hold down the shift key and select the last one in the range. All of the clips in the range will now show a yellow outline. Edit/Paste should now be available. Do an Edit/Paste and the initial transition should now appear between all of the selected clips. If it doesn't work, then close iMovie and reopen it while holding down the Option and Command keys, and selecting to delete preferences in the box that appears. Then try again.

I think that the confusion was caused by my wording in the initial post. When I said "select all the clips in the project or a batch of adjoining clips" I didn't mean the command Edit/Select All, I meant to select all the clips by the method I described in the preceding paragraph of this post. Sorry I wasn't more clear.

-- Rich

If you go to the right end of the timeline under the viewer and click on settings button you can check the box for automatic content in the window that opens. This will place cross dissolve transitions between all your clips automatically. If you have a theme set for your movie it will use transitions appropriate to that theme. There is no way to add transitions of your choice automatically.

Hi,

After you select the transition you need to do an Edit/Copy as I stated in my previous post. If you don't Edit/Copy there is nothing to paste and so the Edit/Paste option is grayed out.

-- Rich

You are welcome. Glad it worked for you.

-- Rich