HI Timothy,
Thank you for your purchase.

You can use CSS to hide the employee on the booking page, for example this CSS code

#amelia-step-booking0 > div.am-select-service > form > div.el-form-item.am-select-employee-option{
display:none;
}

and the result should be like this (attachment 1)

If you want to hide it from the last step ofthe booking as well, use this code also

#am-confirm-booking > div:nth-child(1) > form > div.am-confirm-booking-data.el-row > div.el-col.el-col-24.el-col-sm-24 > div > div:nth-child(1){
display: none;
}

Best regards.

HI Timothy,

You can put CSS code directly on the just include style tags like this

<style>
#amelia-step-booking0 > div.am-select-service > form > div.el-form-item.am-select-employee-option{
display:none;
}
#am-confirm-booking > div:nth-child(1) > form > div.am-confirm-booking-data.el-row > div.el-col.el-col-24.el-col-sm-24 > div > div:nth-child(1){
display: none;
}
<style>

More information on the Link1

Also if you are using Gutenberg builder you can choose Classic editor, Edit as HTML and then paste the code ( attachment) 

As for the users to attach the file , you can use custom fields, more information on this link.

But it can not be uploaded to the google doc.

Best regards.